When Harry L Adam was born on 2 June 1915, in Richmond Township, Berks, Pennsylvania, United States, his father, Alvin Adam Jr., was 19 and his mother, Flossie Mengel, was 17. He married Dorothie Ann Zeidler on 14 March 1939, in Reading, Berks, Pennsylvania, United States. They were the parents of at least 1 son and 1 daughter. He lived in Windsor Township, Berks, Pennsylvania, United States in 1940. He died on 13 October 2005, at the age of 90, and was buried in Hamburg, Berks, Pennsylvania, United States.