1850 census of Floyd Co., Virginia, western district 15, enumerated 5 Sep, lists on p. 127 as family #906:
John S. Dunkin, 64, farmer; Rody, 64; Elijah, 26; Sally, 26; Cealy, 6; Jacob, 4; Peter, 1. All born in Virginia.

Since Elijah and Sally were not married until July 1844, Celia is probably really only 5.

1860 census of Carroll Co., Virginia, Dugspur P.O., enumerated 12 July, lists on p. 64 as family #416/420:
Elijah Duncan, 40, farmer; Sally, 38; Sela, 17; Jacob, 15; Peter, 13; Jessee, 11; David, 9; Malinda, 7; Zylpha, 5. All born in Virginia.

1870 census of Carroll Co., Virginia, Pine Creek township, Hillsville P.O., enumerated 3 Sep, list on p. 33 as family #220/226:
Duncan, Elijah, 45, farmer; Sarah, 45; Celia, 25; Melinda, 14; Ziffa, 12; Elizabeth, 9; Harrison, 4; David, 15. All born in Virginia.