No death date, verified twice at Cemetery and says 19__. Last 2 number are blanked out.
Found a Charles C. Corns US Social Security Death Index from Iowa and Iowa World War II Bonus Case files, both of these with birth and Death Dates for Charles C. Corns. Born in Belle Plaine, Iowa. These records were for Charles C. Corns Jr. with Nov 5 1908 for birth and Dec. 25, 1990 for Death but he was buried in Nebraska. Ancestry had a picture of the Nebraska record and also his wife was not Mildred.