His WW I draft registration card, filed 5 June 1917, records William Kelley Back, age 30, residence Stevenson, Breathitt Co., Ky, born 21 Aug 1887 in Stevenson, Ky, occupation farming, married supporting a wife & four children.

The SSDI lists Kelly Back, born 21 Aug 1887, died 15 May 1970, last residence Wellington, Menifee Co., Kentucky, SSN issued in Kentucky before 1951.

The Kentucky death index lists Kelley Back, age 82, died 19 Apr 1970 in Menifee Co., residence same.

The SSDI lists Medie Back, born 21 Aug 1892, died Jan 1990, last residence Morehead, Rowan Co., Ky.

The Kentucky death index lists Media H. Back, age 97, died 14 Jan 1990 in Rowan Co., residence same.

1910 census of Menifee Co., Ky, Wellington precinct, enumerated 22 April, lists on p. 3B as family #51:
Back, William Ky, 21, farmer, first marriage, married 2 years; Media M., wife, 17, first marriage, married 1 year, 0 children.

The number of living children column for Media is blank. I suspect that the columns were accidently shifted, and that it should have said that she was married two years, mother of 1 child, 0 living.

1920 census of Morgan Co., Ky, Tom’s Branch precinct, enumerated 10 Jan, lists on p. 4A as family #65:
Back, William K., 32, farmer; Medie M., wife, 27; Joe, son, 9; Pearl, son, 9; Isaac C., son, 6; Elmer E., son, 3 11/12; Burnice, son, 1 5/12. All born Ky Ky Ky.

1930 census of Morgan Co., Ky, Cox precinct, enumerated 21 April, lists on p. 11B as family #205:
Back, Kelly, 42, age at first marriage 20; Medie, wife, 37, age at first marriage 16; Joe, son, 19; Pearl, son, 19; Cletis, son, 16; Estill, son, 14; Burnes, son, 11; Rader, son, 9; James L., son, 6; J. K., son, 4/12. All born Ky Ky Ky.

1940 census of Morgan Co., Ky, Cox precinct, ED 88-8, enumerated 18 April, lists on p. 8A as family #136, on Big Woods Road:
Back, Kelly, 52, farmer; Medie, wife, 47; Rader, son, 19; Jim Louis, son, 16; J. K., son, 10; Jesse May, dau, 7. All born in Kentucky, living in same house in 1935.