1870 United States Federal Census Name: Elizabeth Anderson Age in 1870: 21 Birth Year: abt 1849 Birthplace: Maryland Dwelling Number: 211 Home in 1870: District 8, Anne Arundel, Maryland Race: Black Gender: Female Post Office: South River Occupation: Keeping House Cannot Read: Y Cannot Write: Y Inferred Spouse: Israel Anderson Inferred Children: Ann Anderson Household Members: Name Age Israel Anderson 25 Elizabeth Anderson 21 Ann Anderson 7/12 George Dorsey 10
Elizabeth was born about 1849.
1870 U S Census ancestry.com
"Maryland Marriages, 1666-1970", database, FamilySearch (https://familysearch.org/ark:/61903/1:1:F4VW-XMZ : 16 January 2020), Israel Anderson, 1869.
"United States General Index to Pension Files, 1861-1934", database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KDPP-R3D : 13 March 2018), Israel Anderson, 1890.