Can anybody please help me to find this mans next of kin!

A monument will be unveiled for him and the rest of his B-17 bomber crew in the Netherlands this year September 15th. I have tried almost everything and this is my last change to try to find his family to invite them to come to Holland!

He was probably born in 1902, named Alexander P. McDermott. He was with the USAAF from 1942 till 1944 when his plane was shot down. I believe he had a wife named Mary and he had a daughter.

CAN ANYBODY PLEASE HELP ME!!!