John Brooks Threlfall

American genealogist

Biography

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John Brooks Threlfall is in following lists

By field of work

Notable American people in education

Gender:Male, Born in:Years 1900 to 1929

Notable American engineers

Gender:Male, Born in:Years 1900 to 1929

Notable American scientists

Gender:Male, Born in:Years 1900 to 1929

Notable American people in social science

Gender:Male, Born in:Years 1900 to 1929

By work and/or country

Notable American Genealogists

Gender:Male, Born in:Years 1900 to 1929

Notable American Engineers

Gender:Male, Born in:Years 1900 to 1929

Notable American Academics

Gender:Male, Born in:Years 1900 to 1929