Hi,

1940 Casper, Natrona, WY
Lee Turner, b. KS, 42, education=7th grade
Anna, wife, b. IA, 34, new worker, educ=8th grade

I didn't find their death dates in FamilySearch nor in Ancestry.

There is a volunteer in Natrona County who will looks up obits, yearbooks and go to the courthouse. You'll find his/her contact info at www.gengathering.com. You must create a user ID and password to enter this web site. However access to the volunteer contact info is free. Successful Searching!