When Harry Donald Adam was born on 16 May 1898, in Houtzdale, Clearfield, Pennsylvania, United States, his father, Richard Beverage Adam, was 28 and his mother, Margaret Walker, was 24. He married June McNeal on 27 May 1933, in Dauphin, Pennsylvania, United States. He lived in Woodward Township, Clearfield, Pennsylvania, United States for about 20 years. He died in May 1981, in Houtzdale, Clearfield, Pennsylvania, United States, at the age of 83, and was buried in Odd Fellows Cemetery, Brisbin, Clearfield, Pennsylvania, United States.