Oregon County History and Listings

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Baker
1995 Third St., Baker City, OR 97814
(541) 523-8200
http://www.bakercounty.org
Incorporated: Sept. 22, 1862
Parent county: Wasco
Marriage records: start in 1862, kept by County Clerk
Divorce: from 1862-1988
Land: 1865, County Clerk
Military: 1891, County Clerk
Notes: Oregon State Archives has birth records 1871-1929 and Death records 1905-1944. County Clerk has Circuit Court records 1862-1988, divorce records 1862-1988, Naturalization records 1897-1928, and probate records 1863-1984. Since 1965, marriage records and military discharge records have been recorded in the Baker County Records. Since 1987, County Probate Court records have been filed in the Oregon Judicial Information Network.

Benton
408 SW Monroe Ave., Suite 111, Corvallis, OR 97333
(541) 766-6800
http://www.co.benton.or.us
Incorporated: Dec. 23, 1847
Parent county: Polk
Probate records: start in 1880, kept at Benton County Courthouse
Military: 1920, County Clerk
Notes: County Clerk has birth records ca. 1868-ca. 1950, Benton County Historical Museum has birth records 1907-1916, and Oregon State Archives has birth records 1907-1929. County Clerk has Circuit Court records 1853-1984, death records 1907-1948, divorce records 1853-1984, land records ca. 1865-1971, marriage records 1852-1878, and naturalization records ca. 1864-ca. 1950.

Clackamas
2051 Kaen Road, 2nd floor, Oregon City, Oregon 97045
(503) 655-8551
http://www.co.clackamas.or.us
Incorporated: July 5, 1843
Parent county: original county
Land records: ca. 1851, Oregon State Archives; 1906-1972, County Clerk
Probate: 1850, County Clerk
Military: start in 1920, County Clerk
Notes: County Clerk has birth and death records 1902-1920, land records 1906-1972, marriage records 1853-1966, and naturalization records 1890-1905. Oregon State Archives has birth and death records 1915-1945, Circuit Court records 1846-1986, divorce records 1850-1949, marriage records 1848-1948, and naturalization records 1887-1926. From 1967-1977 Military discharges were entered by the County Clerk in the Recording Instruments. Since 1977, the County Clerk has filed military discharges in the Recording Index.

Clark
Incorporated: June 27, 1844
Parent county: original county
Notes: Now part of the state of Washington.

Clatsop
820 Exchange St., Suite 220, Box 178, Astoria, OR 97103
(503) 325-8511
http://www.co.clatsop.or.us
Incorporated: June 22, 1844
Parent county: Twality
Land records: start in 1860, County Clerk
Probate: ca. 1850, County Clerk
Notes: Comments/research tips: County Clerk has birth records 1894-1937, Circuit Court and divorce records 1855-1987, death records 1903-1937, marriage records 1851-1985, military records 1892-1900 and from 1919, and naturalization records 1907-1924, Clatsop County Historical Society has birth records 1915-1949 and Death records 1915-1949. Oregon State Archives has Circuit Court and divorce records 1849-1858 and 1860-1935, Naturalization records 1907-1970, and probate records 1848-1930.

Columbia
230 Strand St., St. Helens, OR 97051
(503) 397-3796
http://www.co.columbia.or.us
Incorporated: Jan. 16, 1854
Parent county: Washington
Probate records: start in 1874, County Clerk
Notes: County Clerk has birth records 1907-1929, Circuit Court and divorce records 1854-1987, death records 1907-1929, land records 1854-1860 and 1872-1991, marriage records 1854-1961, military records 1887-1900 and 1919-1958, and naturalization records 1891-1926. Oregon State Archives has probate records 1850-1930. In 1987, Columbia County started filing county probate cases with the Oregon Judicial Information Network.

Coos
250 N. Baxter St., Coquille, OR 97423
(541) 396-3121
http://www.co.coos.or.us
Incorporated: Dec. 22, 1853
Parent counties: Umpqua, Jackson
Land records: start in 1854, County Clerk
Notes: County Clerk has birth and death records 1906-1929, Circuit Court records 1854-1983, divorce records 1854-1983, marriage records 1853-1968, military records 1875-1906 and from 1946, Naturalization records 1907-1929, and probate records 1852-1989 and from 1990. Prior to 1946 Military Discharges were filed by the County Clerk in the Miscellaneous Record. Since 1965, the County Clerk has filed Military Discharges in the Clerk’s Book of Records. After 1987, all Coos County Probate Court cases have been filed in Oregon Judicial Information Network.

Crook
300 NE Third St., Prineville, OR 97754
(541) 447-6553
http://www.co.crook.or.us
Incorporated: Oct. 24, 1882
Parent county: Wasco
Land records: 1883, County Clerk
Probate: start in 1883, Trial Court Administrator
Military: start in 1883, County Clerk
Notes: Comments/research tips: County Clerk has birth and death records 1907-1939, Circuit Court records 1882-1919, and divorce records 1882-1919, marriage records 1882-1975, Naturalization records 1903-1925, and probate records 1882-1943 and 1971-1982. Trial Court Administrator has Circuit Court and divorce records 1883-1985. A.R. Bowman Museum has Land records 1869-1997. The County Clerk has recorded military discharges in the clerk’s Microfiche Records since 1982. After 1986, all Crook County probate court cases have been filed in Oregon Judicial Information Network.

Curry
29821 Ellensburg Ave., Box 746, Gold Beach, OR 97444
(541) 247-7011
http://www.co.curry.or.us
Incorporated: Dec. 18, 1855
Parent county: Coos
Land records: 1865, County Clerk
Probate: 1888, Curry County Courthouse
Notes: Comments/research tips: Oregon State Archives has Circuit Court records 1872-1939 and naturalization records from 1904, 1909-1913, and 1916-1928. Oregon Historical Records Index has Divorce records 1866-1929. State Courts Civil-Domestic-Probate Office has Divorce records 1903-1987. County Clerk has Marriage records 1856-1964 and military records 1887-1902 and from 1920. The County Clerk has recorded military discharges in the clerk’s Book of Records since 1966. After 1987, all Curry County probate court cases have been filed in Oregon Judicial Information Network.

Deschutes
1300 NW Wall St., Bend, OR 97701
(541) 388-6549
http://www.deschutes.org
Incorporated: Dec. 13, 1916
Parent county: Crook
Land records: 1900, County Clerk
Probate: 1916, Circuit Court Clerk; 1986, Oregon Judicial Information Network
Military: start in 1916, County Clerk
Notes: Circuit Court Clerk has Circuit Court records 1917-1985 and divorce records 1917-1986. County Clerk has Marriage records 1916-1975. Oregon State Archives has naturalization records 1917-1969. The Crook County surveyor’s office has provided a computer database of subdivision plats dating from 1904 to the present, and partition plats dating from 1977 to the present. The clerk’s Miscellaneous Record contains Military Discharge records before 1945. After 1983 the County Clerk has military discharge records. After 1986, all Deschutes County Probate Court cases have been filed in Oregon Judicial Information Network.

Douglas
1036 SE Douglas Ave., Room 221, Roseburg, OR 97470
(541) 440-4324
http://www.co.douglas.or.us
Incorporated: Jan. 7, 1852
Parent county: Umpqua
Land records: 1851, County Clerk
Military: start in 1887, County Clerk
Notes: County Clerk has birth records 1903-1933, Circuit Court records 1852-1978, death records 1903-1933, divorce records 1852-1978, marriage records 1852-1969, and naturalization records 1907-1927. Trial Court Administrator has Circuit Court records 1852-1983, divorce records 1852-1983, and probate records 1852-1989. Oregon State Archives has Marriage records 1852-1983. Absorbed by Umpqua County 1862.

Gilliam
221 S. Oregon St., Box 427, Condon, OR 97823
(541) 384-2311
http://www.co.gilliam.or.us
Incorporated: Oct. 14, 1864
Parent county: Wasco
Land records: 1882, County Clerk
Probate: 1885, County Clerk
Military: start in 1871, County Clerk
Notes: County Clerk has birth records 1903-1920, Circuit Court and divorce records 1885-1985, death records for 1914 only, marriage records 1885-1984, and naturalization records 1885-1928. Oregon State Archives has birth records 1913-1933 and Death records 1912-1933. Miscellaneous Record has military records before 1945.

Grant
201 S. Humboldt St., Canyon City, OR 97820
(541) 575-1675
http://www.gcoregonlive2.com
Incorporated: Oct. 14, 1864
Parent counties: Wasco, Umatilla
Land records: start in ca. 1877, County Clerk
Probate: 1864, County Clerk
Military: 1920, County Clerk
Notes: County Clerk has birth records 1894-1929, 1940-1941, death records 1915-1929, marriage records 1864-1970, military records 1887-1901, and naturalization records 1862-1948. Circuit Court Clerk has Circuit Court records 1887-1888 and 1893-1986. Oregon State Archives has Circuit Court records 1864-1923 and military records 1872-1898. Oregon Historical Records Index has Divorce records 1872-1922.

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Harney
450 N. Buena Vista Ave. #14, Burns, OR 97720
(541) 573-6641
http://www.co.harney.or.us
Incorporated: Feb. 25, 1889
Parent county: Grant
Land records: 1885, 1902, start in 1911, County Clerk
Probate: start in 1898, County Clerk
Military: 1942, County Clerk
Notes: County Clerk has Circuit Court and divorce records 1886-1976, land records for 1885 and 1902, marriage records 1889-1966, military records 1889-1900, and naturalization records 1889-1929. Circuit Courtroom Cabinet has Circuit Court records 1947-1985.

Hood River
601 State St., Hood River, OR 97031
(541) 386-1442
http://www.co.hood-river.or.us
Incorporated: June 23, 1908
Parent county: Wasco
Land records: start in 1890, County Clerk
Probate: 1868, Trial Court Clerk
Military: start in 1919, County Clerk
Notes: Oregon State Archives has birth and death records 1907-1921 and naturalization records 1913-1928. Hood River County Trial Court Clerk has Circuit Court and divorce records 1896-1898, 1908-1983. Hood River County Assessment Office has Marriage records 1908-1961. Oregon Historical Records Index has naturalization records 1880-1940. Probate, land and Circuit Court case records from Wasco County prior to the creation of Hood River County are included.

Jackson
10 S. Oakdale Ave., Room 114, Medford, OR 97501
(541) 774-6147
http://www.co.jackson.or.us
Incorporated: 12 Jan. 12, 1852
Parent county: Lane
Probate records: ca. 1853-1987, Circuit Court Clerk; start in 1988, Oregon Judicial Information Network
Court: start in 1983, Oregon Judicial Information Network
Military: 1966, Clerk’s Official Records
Notes: County Clerk has birth records 1907-1929, death records 1906-1929, land records for 1887 and 1905-1971, and Marriage records 1855-1964. Oregon State Archives has birth records 1906-1915, Circuit Court records 1856-1914, military records 1868-1873, and naturalization records 1859-1981. Circuit Court Clerk has Circuit Court records 1860-1983, divorce records 1856-1978, and probate records ca. 1853-1987. University or Oregon, Knight Library has Circuit Court records 1858-1918, land records ca. 1867-1892, and military records for 1864 and 1874. Sourthern Oregon Historical Society has Marriage records 1854-1930. Oregon Historical Society has military records 1863, 1868-1875, 1877, 1879-1880, and 1883-1883. County Court Clerk has naturalization records 1907-1929. Military discharges were recorded in the clerk’s Miscellaneous Record before 1966.

Jefferson
66 SE D St., Madras, OR 97741
(541) 475-4451
http://www.co.jefferson.or.us
Incorporated: Dec. 12, 1914
Parent county: Crook
Land records: start in 1870, Jefferson County Historical Society Museum;
Probate: 1893, Trial Court Administrator
Military: 1983, County Clerk
notes: County Clerk has birth records 1886-1944, death records 1915-1944, marriage records 1882-1961, military records 1920-1982, and naturalization records 1915-1928. Trial Court Administrator has Circuit Court and divorce records 1915-1984, and probate records 1893-1985. Jeffercon County Public Works Department has Land records 1918-1949. Jefferson County Probate records have been filed on Oregon Judicial Information Network since 1985.

Josephine
500 NW Sixth St., Grants Pass, OR 97526
(541) 474-5240
http://www.co.josephine.or.us
Incorporated: Jan. 22, 1856
Parent county: Jackson
Land records: start in 1854, County Clerk
Probate: 1987, Oregon Judicial Information Network
Military: start in 1919, County Clerk
Notes: Josephine County Public Health Department has birth and death records 1906-1925. County Clerk has Circuit Court records 1958-1981, divorce records 1925-1949 and 1959-1978, marriage records 1857-1971, and military records 1863-1893 and 1896-1900. Oregon State Archives has naturalization records 1907-1936 and Probate records 1848-1944. Josephine County Court Civil Unit Office has probate records 1939-1986.

Klamath
305 Main St., Klamath Falls, OR 97601
(541) 883-5134
http://www.co.klamath.or.us
Incorporated: Oct. 17, 1882
Parent county: Lake County
Marriage records: from 1882-1990, kept by County Clerk
Divorce: 1883-1988,Clerk of Circuit Court
Land: start in ca. 1870, Klamath County Surveyor; 1875, County Clerk
Probate: ca. 1882-1987, Clerk of County Court; start in 1988, Oregon Judicial Information Network
Court: 1883-1987, Clerk of Circuit Court
Naturalization: 1889-1981, Clerk of County Court
Military: 1887-1888, start in 1919, County Clerk
Notes: Clerk of Circuit Court has Circuit Court records 1883-1987 and divorce records 1883-1988. County Clerk has Marriage records 1882-1990 and military records 1887-1888. Clerk of County Court has naturalization records 1889-1981. Military Discharge records were recorded in the Miscellaneous Record before 1920 and filed in the clerk’s Book of Records since 1965. Clerk of County Court has probate records ca. 1882-1987.

Lake
513 Center St., Lakeview, OR 97630
(541) 947-6051
http://www.lakecountyor.org
Incorporated: Oct. 24, 1874
Parent counties: Jackson, Wasco
Land records: start in ca. 1879, County Clerk
Probate: start in ca. 1892, Trial Court Administrator
Military: start in 1944, County Clerk
Notes: Trial Court Administrator has Circuit Court records 1875-1983 and divorce records 1875-1984. County Clerk has Marriage records 1875-1968, Naturalization records ca. 1882-1957, and probate records 1875-1930. Lake County Museum has military records 1887-1888. Planning and Building Department has naturalization records ca. 1875-1940.

Lane
125 E. Eighth Ave., Eugene, OR 97401
(541) 682-3654
http://www.co.lane.or.us
Incorporated: Jan. 28, 1851
Parent counties: Benton, Linn
Land records: 1856, Deeds and Records Archives
Probate: 1853-1982, start in 1988, Court Archives
Military: 1905, Lane County Historical Museum
Notes: Deeds/Records Research Library has birth and death records 1882-1915, marriage records 1852-1965, military records 1918-1966, and naturalization records 1926-1980. State Archives has birth and death records 1915-1928. Court Archives has Circuit Court records 1854-1989, divorce records 1854-1989, and probate records 1853-1982. Lane County Historical Museum has military records 1858-1894.

Lewis
Incorporated: Dec. 21, 1845
Parent county: original county
Notes: Now part of the state of Washington.

Lincoln
225 W. Olive St., Room 201, Newport, OR 97365
(541) 265-4131
http://www.co.lincoln.or.us
Incorporated: Feb. 20, 1893
Parent counties: Benton, Polk
Land records: 1869, County Clerk
Probate: 1992, Trial Court Administrator
Notes: County Clerk has birth and death records 1907-1920, marriage records 1893-1989. Trial Court Administrator has Circuit Court and divorce records 1893-1983, military records 1945-1986, and probate records 1893-1989. Community Corrections Clerk has military records 1894-1899. Public Service Building Clerk has naturalization records 1903-1929. Military discharge records after 1968 filed in the Book of Records. Circuit and Probate Court records after 1983 filed on Oregon Judicial Information Network.

Linn
300 SW Fourth Ave., Room 205, Box 100, Albany, OR 97321
(541) 967-3829
http://www.co.linn.or.us
Incorporated: Dec. 28, 1847
Parent county: Marion
Divorce records: start in 1983, Circuit Court Clerk
Land: 1856, County Surveyor
Probate: 1863, Circuit Court Clerk
Court: 1983, Circuit Court Clerk
Notes: State Archives has birth and death records 1903-1949, military records 1874-1893, and naturalization records 1891-1956. Circuit Court Clerk has Circuit Court and divorce records 1861-1974. County Clerk has Marriage records 1850-1969 and military records 1888-1901 and 1919-1970. Historical Records Index has naturalization records 1850-1856.

Malheur
251 B St. W, Suite 4, Vale, OR 97918
(541) 473-5151
http://www.malheurco.org
Incorporated: Feb. 17, 1887
Parent county: Baker
Land records: start in 1887, County Clerk
Probate: 1886, County Clerk
Military: 1983, County Clerk
Notes: Trial Court Administrator has birth and death records 1907-1939 and Circuit Court ahd Divorce records. State Archives has Circuit Court and divorce records 1886-1930. County Clerk has Marriage records 1880-1986, military records 1944-1973, and naturalization records 1861-1908.

Marion
100 High St. NE, Room 1331, Salem, OR 97301
(503) 588-5225
http://www.co.marion.or.us
Incorporated: July 5, 1843
Parent county: original county
Land records: 1850, County Clerk
Probate: 1843, Circuit Court Clerk
Military: 1913, County Clerk
Notes: County Clerk has birth records 1871-1932, death records 1907-1929, and Marriage records 1849-1967. Circuit Court Clerk has Circuit Court records 1848-1984 and divorce records 1848-1984. State Archives has military records 1891-1893, 1896-1902, 1917, and 1940. Probate Court records after 1987 filed on Oregon Judicial Information Network. Originally Champooick District. Name changed to Marion 3 September 1849.

Morrow
100 S. Court St., Suite 102, Box 338, Heppner, OR 97836
(541) 676-9061
http://www.morrowcountyoregon.com
Incorporated: 16 Feb. 16, 1885
Parent counties: Umatilla, Wasco
Land records: start in 1935, County Clerk
Probate: 1885, Circuit Court Clerk
Military: 1945, County Clerk
Notes: County Clerk has birth and death records 1905-1929, land records 1861-1915, marriage records 1885-1901 and 1905-1988, military records 1887-1898, and naturalization records 1906-1953. Circuit Court Clerk has Circuit Court and divorce records 1885-1985.

Multnomah
1021 SW Fourth Ave., Portland, OR 97204
(503) 988-3957
http://www.multco.us
Incorporated: Dec. 22, 1854
Parent counties: Washington, Clackamas
Land records: start in 1851, Assessment and Taxation
Probate: start in 1855, Circuit Court Clerk
Military: 1909, Assessment and Taxation
Notes: Circuit Court, public access has Circuit Court records 1855-1860, 1906-1929, 1972-1982, and divorce records 1855-1860, 1906-1929, 1972-1983. County Assessment/Taxation Division has Marriage records 1855-1968 and military records for 1893. Circuit Court Clerk has naturalization records 1887-1940. Oregon Historical Society has probate records 1850-1873 and 1896. Book of Records has military discharge records before 1964.

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Polk
850 Main St., Dallas, OR 97338
(503) 623-9217
http://www.co.polk.or.us
Incorporated: Dec. 22, 1845
Parent county: Yamhill
Land records: start in 1890, County Clerk
Probate: start in 1986, Circuit Court Clerk
Military: start in 1919, County Clerk
Notes: State Archives has birth records 1903-1915, death records 1903-1906, military records 1892-1901, Naturalization records 1872-1906 and 1908-1925, and probate records 1847-1921. County Clerk has birth records 1915-1921, death records 1907-1921, and Marriage records 1848-1980. Circuit Court Clerk has Circuit Court records 1846-1983, divorce records 1846-1983, and probate records 1921-1971. Public Works Department has military records for 1877.

Sherman
500 Court St., Box 365, Moro, OR 97039
(541) 565-3606
http://www.sherman-county.com
Incorporated: Feb. 25, 1889
Parent county: Wasco
Land records: start in 1885, County Clerk
Probate: 1889, County Clerk
Military: 1987, County Clerk
Notes: County Clerk has birth records 1904-1941, Circuit Court records 1889-1933, death records 1905-1952, divorce records 1889-1933, marriage records 1889-1977 and 1982-1987, military records 1921-1955, 1960-1977, and for 1982, and naturalization records 1889-1901 and 1907-1929. Circuit Court Clerk has Circuit Court and divorce records 1933-1987.

Tillamook
201 Laurel Ave., Tillamook, OR 97141
(503) 842-3402
http://www.co.tillamook.or.us
Incorporated: Dec. 15, 1853
Parent counties: Clatsop, Polk, Yamhill
Land records: start in 1860, County Clerk
Probate: start in 1988, Oregon Judicial Information Network
Military: start in 1918, County Clerk
Notes: State Archives has birth and death records 1903-1943, Circuit Court records 1862-1969, divorce records 1862-1969, and naturalization records 1907-1927. Tillamook County Pioneer Museum has Death records 1918-1945. Trial Court Administrator has Divorce records ca. 1868-1983 and Probate records 1859-1987. County Clerk has Marriage records 1854-1964. Circuit Court civil and criminal records dating before 1904 were recorded separately. Recorded Instruments has military discharge records before 1968. Direct and Indirect Alpha Indexes has as part of the recorded instruments Military Discharge records after 1994.

Twality
Incorporated: July 5, 1843
Parent county: original county
Notes: See Washington County. Name changed to Washington Sept. 3, 1849.

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Umatilla
216 SE Fourth St., Pendleton, OR 97801
(541) 276-7111
http://www.co.umatilla.or.us
Incorporated: Sept. 27, 1862
Parent county: Wasco
Land records: start in 1862, County Clerk
Probate: 1987, Oregon Judicial Information Network
Military: 1910, County Clerk
Notes: County Clerk has birth records 1890-1897, 1914-1926, death records 1892-1897, 1914-1926, marriage records 1862-1962, and naturalization records ca. 1863-1974. State Archives has birth records 1906-1945 and Death records 1907-1944. Trial Court Administrator has Circuit Court records 1863-ca. 1997, divorce records 1863-ca. 1997, and probate records 1863-1986. County Surveyor’s office has military records 1889-1902 and 1942-1976. The clerk’s Miscellaneous Record has military discharge records before 1942.

Umpqua
Incorporated: Jan. 24, 1851
Parent counties: Benton, Linn
Notes: See Douglas County. Absorbed by Douglas County Oct. 16, 1862.

Union
1106 K Ave., La Grande, OR 97850
(541) 963-1001
http://www.union-county.org
Incorporated: Oct. 14, 1864
Parent county: Baker
Land records: start in 1865, County Clerk
Probate: 1987, Oregon Judicial Information Network
Military: 1989, County Clerk
Notes: County Clerk has birth and death records 1905-1906, marriage records 1864-1968, military records 1864-1991, military Discharge records 1919-1944, and Naturalization records 1865-1926. Trial Court Administrator has Circuit Court records 1864-1986, divorce records 1864-1986, and probate records 1865-1986.

Wallowa
101 S. River St., Room 100, Enterprise, OR 97828
(541) 426-4543
http://www.co.wallowa.or.us
Incorporated: Feb. 11, 1887
Parent county: Union
Land records: start in 1906, County Clerk
Probate: 1987, Oregon Judicial Information Network
Military: 1990, County Clerk
Notes: County Clerk has birth and death records 1905-1944, Circuit Court and divorce records 1887-1983, marriage records 1887-1970, military records for 1878, 1888-1900, 1919-1990, Naturalization records 1897-1906, and probate records 1886-1995

Wasco
511 Washington St., The Dalles, OR 97058
(541) 506-2530
http://www.co.wasco.or.us
Incorporated: Jan. 11, 1854
Parent counties: Clackamas, Marion, Linn, Lane
Land records: start in 1854, County Clerk
Probate: 1854, Court Operations and Filing Office
Notes: County Clerk has birth and death records 1865-1891, marriage records 1854-1962, and military records 1855-1856, 1889-1905, 1918-1962, and 1975-1986. Oregon State Archives has birth and death records 1915-1941, Circuit Court records 1848-1963, divorce records 1848-1963, and naturalization records 1885-1962. Circuit Court Clerk has Circuit Court and divorce records 1854-1989.

Washington
155 N. First Ave., Suite 130, Hillsboro, OR 97124
(503) 846-8741
http://www.co.washington.or.us
Incorporated: July 5, 1843
Parent county: original county
Land records: start in 1868, Assessment and Taxation
Probate: 1987, Oregon Judicial Information Network
Military: 1964, Book of Records
Notes: Assessment/Taxation Department has birth and death records 1907-1946, marriage records 1842-1961, military records 1895-1917, 1919-1977, and naturalization records 1903-1906. Clerk of Circuit Court has Circuit Court and divorce records 1850-1982, and probate records 1848-1986. State Archives has Circuit Court and divorce records 1844-1939, military records for 1864, 1867-1873, 1884-1900, 1917-1918, naturalization records 1907-1927, and probate records 1842-1921. Washington County Historical Museum has land records ca. 1850-1985. Formerly named Twality County. Name changed to Washington Sept. 3, 1849.

Wheeler
701 Adams St., Suite 204, Box 327, Fossil, OR 97830
(541) 763-2400
http://www.wheelercounty-oregon.com
Incorporated: Feb. 17, 1889
Parent counties: Crook, Gilliam, Grant
Land records: start in 1884, County Clerk
Probate: 1887, County Clerk
Military: 1899, County Clerk
Notes: State Archives has birth and death records 1915-1930. Trial Court Coordinator has Circuit Court and divorce records 1898-1988. County Clerk has Marriage records 1896-1977 and naturalization records 1899-1927.

Yamhill
414 NE Evans St., McMinnville, OR 97128
(503) 434-7518
http://www.co.yamhill.or.us
Incorporated: July 5, 1843
Parent counties: original county
Land records: ca. 1858, County Clerk
Probate: 1852, Trial Court Administrator
Military: start in 1919, County Clerk
Notes: State Archives has birth records 1871-1944, Circuit Court and divorce records 1854-1943, death records 1907-1928, and naturalization records 1853-1959. County Clerk has birth records 1903-1906 and 1908-1925, and Marriage records 1856-1978. Trial Court Administrator has Circuit Court and divorce records 1894-1979. Yamhill County Museum has Death records ca. 1919-ca. 1928. Yamhill Public Works/Surveyor’s office has Land records 1852-1899. Oregon Historical Society has military records 1864-1870.

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From the Family Tree Sourcebook
Also available: the State Research Guide Book, State Research Guides CD and The Researcher’s Guide to American Genealogy.