Jo married Marvin Anita Williams on 7 Apr 1940 in Clayton, Union, New Mexico, USA. Marvin (daughter of Robert Marvin Williams, Sr and Lana Lee Bearden) was born on 27 Jun 1922 in Dalhart, Dallam, Texas, USA; died on 7 Jun 1997 in Potter, Texas, USA; was buried in 1997 in Amarillo, Potter County, Texas, USA. [Group Sheet] [Family Chart]

1. David Earl Cupell was born on 23 Sep 1952 in Amarillo, Potter, Texas, USA; died on 18 Dec 2002 in Wichita, Sedgwick, Kansas, USA; was buried in 2002 in Liberal, Seward, Kansas, USA.
2. Karen Sue Cupell was born in in Texas, USA; died in 1950.
3. Private
4. Private
5. Private