1850 U.S. Census, Essex County, Virginia
Dwelling 607, Family 607
Clarke, John, 45, male, laborer, born in Virginia
Clarke, Julia, 42, female, born in Virginia
Clarke, Robert, 16, male, born in Virginia
Clarke, John, 15, male, born in Virginia
Clarke, Martha, 12, female, born in Virginia
Clarke, Charles, 7, male, born in Virginia
Clarke, Emeline, 5, female, born in Virginia
Clarke, Olivia, 4, female, born in Virginia

1880 U.S. Census, Essex County, Virginia, Center Cross Precinct
Enumeration District 22, Sheet 6B
Dwelling 56, Family 57
Cox, Henry, white, male, 46, married, fisherman, cannot read or write, born in Virginia, both parents born in Virginia
Cox, Martha, white, female, 42, wife, married, keeping house, cannot write, born in Virginia, both parents born in Virginia
Cox, Lewis, white, male, 18, son, single, farm laborer, cannot read or write, born in Virginia, both parents born in Virginia
Cox, Martha, white, female, 10, daughter, single, at home, attended school, born in Virginia, both parents born in Virginia
Cox, Washington, white, male, 5, son, born in Virginia, both parents born in Virginia
Cox, Threshly, white, male, 3, son, born in Virginia, both parents born in Virginia