Genealogy Assumptions Part II: The Sisters Theory

By Diane Haddad

Last week I posted about nearly blending my third-great-uncle Henry Thoss’ consecutive spouses into one person, based on an assumption about his household’s 1940 census listing.

In 1940, Henry was listed with wife Eleanor, 50, and mother-in-law Mary Dietrich, suggesting that Mary was Eleanor’s mother, and Dietrich was her maiden name. But in the 1930 census, Henry lived with his a 34-year-old wife named Alma, plus Mary. So Mary was Alma’s mother, and she continued living with Henry and his new wife, Eleanor, after Alma died in 1932.

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