1840 U.S. Census, Essex County, Virginia:
Durham, Thomas
1 male under 5 [this could be Alfred]
2 males 5-10
1 male 10-15
1 male 15-20
1 male 20-30
1 male 40-50 [this would be Thomas]
1 female under 5
2 females 15-20 [one could be Susan]
1 female 40-50 [this would be Ann]

1850 U.S. Census, Essex County, Virginia:
Dwelling 380, Family 380
Durham, Thomas, 60, minister, $1360
Durham, Ann, 55
Durham, John, 34, carpenter, unable to read or write
Durham, Susan, 30, unable to read or write
Durhan, Frances, 28, unable to read or write
Durham, Thomas, 36, laborer, unable to read or write
Durham, George, 24, idiotic
Durham, James, 20, laborer
Durham, Alfred, 17
All were born in Virginia.

1860 U.S. Census, Essex County, Virginia
Lloyds Post Office, page 66
Dwelling 631, Family 615
Durham, Thomas, 69, male, farmer, value of real estate $2,500, value of personal estate $1,275
Durham, Ann, 65, female
Durham, Susan, 33, female
Durham, George, 32, male, idiotic
Durham, Francis, 30, female
Durham, James T., 29, male
Durham, Elizabeth, 23, female

She is listed as the mother of her daughter Betty in Betty’s marriage record.