Maryland, U.S., Compiled Census and Census Substitutes Index, 1776-1890
1800 United States Federal Census
1820 United States Federal Census
1830 United States Federal Census
Maryland, U.S., Compiled Marriages, 1655-1850
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DNA Connections
It may be possible to confirm family relationships with John by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share some percentage of DNA with John: