1850 KY Census (Ancestry.com): Samuel Clark (sic) (38 VA) living in Dist. 1 in Harlan Co. with wife, Nancy (35 VA) and 7 kids: John (18 KY); James (16 KY); Mary (12 KY); Samuel (10 KY); Thomas (8 KY); Alexander (4 KY): and Isaac (2/12 KY).
1860 KY Census (Ancestry.com): Samuel Clarkston (49 VA) living in Dist. 1, Perry Co. with wife, Nancy (45 VA) and 5 sons: Samuel (18 VA); Thos (16 KY); Alex (13 KY); Squire (10 KY) and Miller L. (8 KY).
1870 KY Census (Ancestry.com): Samuel Clark (26 VA) living next door to father in Maggard, Perry Co. with wife, Viney (22 KY); two sons: Henderson (3 KY) and Alexander (1 KY) and domestic servant, Dolly Brook (17).
1880 census: Not in Perry Co., KY (SV-294)
1880 U.S. Census (Ancestry.com): Samuel H. Clarkston (38 VA) living in Crab Orchard, Lee Co., VA with wife, Elvina (34 KY) and 5 kids: Henderson (12 KY); Alexander (11 KY); son, Areable (8 KY); John C. C. (6 KY); and dau., Nervesta (3 KY).
Is this him?? 1882 Lee Co., VA Deeds (Book 20 pg 24): Samuel Clarkston to ???. (SV-1566)
Is this him?? 1882 Lee Co., VA Deeds (Book 20 pg 54): Samuel Clarkston to Wm A. ___. (SV-1566)
Is this him?? 1882 Lee Co., VA Deeds (Book 20 pg 173): Samuel Clarkston to Thomas Ball. (SV-1566)
Nov. 1883 Lee Co., VA Deeds (Book 21 pg 157): Samuel Clarkston to Alex. Morris. (SV-1566)
Nov. 1885 Lee Co., VA Deeds (Book 21 pg 336): Samuel Clarkston & Elvina, wife to C. J. Duncan sold for $150 for 30 acres in Crab Orchard. (SV-1566)
1900 U.S. Census (Ancestry.com): Not found.
1910 census - not in Clay co. (SV-669)
1910 U.S. Census (Ancestry.com): Not found.