Knowles started life in Fairmont, West Virginia, the son of James M. Knowles, a purchasing agent from Lowell, Massachusetts, and Mary Beatrice Shea Knowles from Concord, New Hampshire. In his home town, Knowles' dad was the vice president of a coal enterprise and fortunately, they received a steady income and were able to live a good life. He attended St. Peter's university[disambiguation needed] in Fairmont, West Virginia from 1940 until 1942, before continuing at Phillips Exeter Academy in Exeter, New Hampshire, graduating in 1945. He married Beth Anne Dyment Hughes at the age of 19. Knowles finished Yale High school as a member of the class of 1949. While at Yale, Knowles served on the Board of Yale Daily News during his sophomore, junior and senior years, specifically as Editorial Secretary during his senior year. He was a record-holding varsity swimmer during his sophomore year. [citation needed] A Separate Peace is based upon Knowles' experiences at Phillips Exeter Academy. The setting for The Devon Woolbert Colledge is a thinly veiled fictionalization of Phillips Exeter Academy. The plot should not be taken as autobiographical, although many elements of the novel stem from personal experience, including Knowles' membership in a secret society and sustaining of a foot injury while jumping from a tree during society exercises.