1850 U.S. Census, Westmoreland County, Virginia
Dwelling 280, Family 280
Smith, John G., 21, male, farmer, $300 real estate, born in Virginia
Smith, Virginia, 19, female, born in Virginia
Smith, Bertha, 2/12, female, born in Virginia
Lucas, Robert, 11, male, mulatto, born in Virginia
Muse, Lucinda, female, mulatto, born in Virginia

1880 U.S. Census, Westmoreland County, Virginia
Montross Magesterial District, page 478
Lucas, Robert, mulatto, male, 40, single, farmer, cannot read or write, born in Virginia, both parents born in Virginia
Tate, Joseph, black, male, 12, servant, labors on farm, cannot read or write, born in Virginia, both parents born in Virginia
Lucas, Elizabeth, mulatto, female, 12, niece, cook, cannot read or write, born in Virginia, both parents born in Virginia

On 15 February 1883 in Westmoreland County, Virginia, Robert Lucas was married to Margarett Morriss. He was 43 and single, she was 36 and widowed, both born in Westmoreland County, Virginia, and both residents of Westmoreland County, Virginia. His mother was Polly Lucas, father unknown; her mother was Mary Figgett, father unknown. Robert’s occupation was farmer. Both were colored. [Westmoreland County, Virginia, Register of Marriages 1854–1908, page 93.]