The below link will give you a picture of his marker. (Click the numbers on the right side) The death certificate on the other hand probably does not exist. My grandfather also died in Scurry County, in 1945, and there is no record anywhere in the state. I wish you luck but please try and be satisfied with the dates on the marker.

http://www.rootsweb.ancestry.com/~txscurry/towns/snyder/ceme...

Sincerely,
Mike
mdhoyle@gmail.com