idk if you already saw this, but I found it on familysearch.org that puts marriage at about 1929.

Paul Cantrell Compact Disc #71 Pin #883956
Sex: M

Birth: 4 Feb 1909
Nashville, TN
Death: Apr 1966
Skokie, Il
Burial:
Memorial Gardens, Evanston, IL

Father: Leonidas Cleborn Cantrell Disc #71 Pin #882319
Mother: Minerva "Minnie" Thompson Martin Disc #71 Pin #882320

Marriage: abt 1929
Chicago, IL

Submitter
Sharon Louisa CANTRALL
667 Joseph Street Ukiah, CA 95482
http://freepages.genealogy.rootsweb.ancestry.com/~whippet/CA...