George Leslie Corbitt

Has anyone else felt they were going crazy.
George Leslie Corbitt was born 1895 Northern Ireland.
His mother died when he was just 10. His Father eventually
remarried and they settled in England.In 1921 George married a Mary Hall and in 1928 they had a son Joseph Alexandra .
They emigrated to New York 1929 and settled there. I have been able to trace them up to 1942.
The son Joseph enlisted in 1946 with the USAF. married and had a family.On his application he said he was Single with
Dependants - obviously his parents. He died Tennessee 1983
And buried in Johnson City.
A Friend looked on Ancestry to try and Find George Leslie Corbitt's Date of Death with out success.

Can someone help me get George Leslie Corbitts date of death.

Many thanks
Muriel