When Moses Harriman was born on 28 January 1801, in Albany, Carroll, New Hampshire, United States, his father, William Harriman, was 26 and his mother, Anna Walker, was 13. He had at least 6 sons and 5 daughters with Mary Leonard Gile. He lived in Maine, United States in 1870. He died on 14 May 1882, in Lovell, Oxford, Maine, United States, at the age of 81, and was buried in Lovell, Oxford, Maine, United States.