 In his 1909 and 1917 U.S. Passport Applications, Coe indicated that his permanent residence was in Sommerville.In 1918, Coe was living in Lexington, Massachusetts, with his wife, and he was a partner with his father in the dye manufacturing business.At the time of the 1920 United States Census, Coe was living on Beacon Street in Boston with his wife, Evelyn, and their daughter, Jane.