Paul's father was Ora Edmand Carnahan, born 1909 in Indiana, and his mother was Bessie Johnson (aka Bessie Mae Horton Carnahan), born 1912 Illinois, died 1978, (Her maiden name was Horton. She married first, Merl W. Johnson, 1913-1998 and second, Ora Carnahan.
He had siblings Betty J Canary, 1930-2005, Mary Ellen Wilkerson, 1932-1997, and Alice Ellar "Sissy" Hatfield-Coomes, 1939-2011. He also had half sibling Kenneth L Carnahan, 1934-2015.
In the 1940 federal census, Paul was 3 years old and living with his parents Ora, 31, and Bessie, 27, in Owensville IN. Also in the household were siblings Betty Jane, 9, Mary Ellen, 7, Kenneth, 5, and Alice Ellen, 11 months. Both parent were born in Indiana and father Ora was working as a "shoveler" (sic) for the WPA.
Paul married Rebecca Jane (Johns) Hatfield Carnahan on Aug 10 1985 in Evansville IN. Both had been previously divorced.