Isaac Anthony Rainbolt was born in Schuyler County MO 29 Jul 1862, a son of Hamilton Joseph and Cyrene Jane (Newland) Rainbolt. He was raised in Schuyler County, where he met and married Sarah Caroline Foglesong, a daughter of George and Telitha Jane (Eldridge) Foglesong on 31 Oct 1886.

Family have said that Isaac Anthony preferred to be called "A" Rainbolt. He and Sarah were the parents of seven children:

1) Maude Belle
b) 8 Aug 1887 Lancaster, Schuyler County, MO
d) unknown
m) 3 Nov 1907, Harry York

2) Elsie Dortha
b) 26 Feb 1889 Lancaster, Schuyler County, MO
d) unknown
m) 14 Aug 1907, Hollis York

3) Edna Caroline
b) 16 Mar 1890 Lancaster, Schuyler County, MO
d) 8 Dec 1908
m) date unknown, Claude Kneedler

4) Claude Anthony
b) 19 Sept 1891, Lancaster, Schuyler Co MO
d) ca 1967 Michigan
m) 3 Jul 1916 Schuyler Co MO, Mildred Lois Greer

5) Ora Dale "Fritz"
b) 26 Sept 1895 Lancaster, Schuyler Co MO
d) 20 May 1984, Kirksville, Adair Co MO
m) 22 Oct 1922, Schuyler Co MO, Mary Elizabeth "Betty" Greer

6) Lillian Opal
b) 6 Oct 1896 Schuyler Co MO
d) 18 Mar 1899, Schuyler Co MO

7) Myrtle Allah
b) 19 Jul 1897 (20 Jul 1898) Lancaster, Schuyler Co MO
d) 1999
m) 21 June 1924, St Patrick, Clark Co MO, Bernard W. McDermott

"A" Rainbolt passed away 23 Feb 1949 at Williamstown, Lewis County, MO. His wife, Sarah Caroline, preceded him in death 20 Jul 1940, Lewis Co MO. Both are buried at the Fabius Cemetery, Schuyler County, MO.