Hmm... why not start profiles on them as "cousin bait" and see if you can connect them up with anybody? The hard part will be making the jump from history to living people.
I found a record of the marriage of Lee Creech and Johnnie Block on Family search - that should be enough to get you started with profiles and see if you can find more.
"Oklahoma, County Marriages, 1890-1995", database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:VXLP-B9Z : 12 December 2014), Lee Creech and Johnie Leon Block, 1924.