When Oliver Cromwell Gould was born on 20 April 1870, in Portland, Cumberland, Maine, United States, his father, John Mead Gould, was 30 and his mother, Amelia Jenkins Twitchell, was 27. He married Grace Brown Chapman on 23 December 1898, in Bethel, Oxford, Maine, United States. They were the parents of at least 2 sons and 1 daughter. He lived in Portland Ward 3, Portland, Cumberland, Maine, United States for about 10 years and South Portland, Cumberland, Maine, United States in 1940. He died on 8 May 1953, in Bethel, Oxford, Maine, United States, at the age of 83, and was buried in Bethel, Oxford, Maine, United States.