1850 census of Fleming Co., Ky, division 2, enumerated 20 Aug, lists on p. 21 as family #135:
Sampson Green, 30, farmer; Eliza Ann, 23; Charles W., 4; George F., 2. All born in Kentucky.

i cannot find a good match for this family in the 1860 census. There is a Sampson Green family in Rowan Co., but none of the other names or ages fit. (I am listing them just to show how different the family looks.)

**Probably not this family**
1860 census of Rowan Co., Ky, Morehead P.O., enumerated 18 Aug, lists on p. 53 as family #423/426:
Sampson Green, 36, farmer; Mary M., 32; Sarah, 5; Thomas, 3; Hiram, 1. All born in Kentucky.

1870 census of Rowan Co., Ky, Cross Roads precinct, enumerated 30 June, lists on p. 12 as family #83:
Green, Sampson, 50, farmer; Eliza, 44; Warren, 24; George, 22; Thomas, 19; Martha, 17; John, 14. All born in Kentucky.