Henry Clarke was mentioned in the 13 January 1834 will of his father, Robert Clark, proved 20 May 1839. [Essex County, Virginia, Will Book 24, page 406.]

1850 U.S. Census, Essex County, Virginia
Dwelling 605, Family 605
Clarke, Mary, 64, female, $540 real estate, born in Virginia
Clarke, William, 30, male, laborer, born in Virginia
Clarke, Thomas, 27, male, laborer, born in Virginia
Clarke, James, 20, male, laborer, born in Virginia
Clarke, Adeline, 21, female, born in Virginia
Clarke, Henry, 19, male, laborer, born in Virginia
Good, Fanny, 17, female, born in Virginia