Robert Parsons Foss was born on September 25, 1897 to Alvah E. and Martha M. (Weagle) Foss in Southwest Harbor, Maine. Robert married Esther Louise Gott (1902-1994), daughter of William E. and Gertrude Mae (Osier) Gott, on November 19, 1921 in Tremont, Maine. Robert Parsons Foss died on November 3, 1975 in Bar Harbor, Maine.