When George Henry Fessler was born on 18 October 1824, in Pennsylvania, United States, his father, William Fredrick Fessler, was 38 and his mother, Mary Polly Evans, was 36. He married Mary Elizabeth Oakman in 1847. They were the parents of at least 4 sons and 5 daughters. He lived in Wells Township, Fulton, Pennsylvania, United States for about 50 years. He died on 14 October 1911, in Pennsylvania, United States, at the age of 86.