Paul Theodore Breithaupt was born September 9, 1903 in Berlin (later Kitchener) Ontario to parents Louis Jacob and Emma Alvarene Devitt. Paul joined his sister, Edna, in active support of the fine arts, including the Grange Studios and the Art Students' League in Toronto during the early 1930's. He married Margaret Jean Alexander July 17, 1937 and the couple had three children: Paul Alexander; Emmy; E.A. Kirby. They lived in Pickering, Ontario and later Guildwood Village, Scarborough, the residential community his sister Rosa and her husband Spencer Clark were involved in creating that was adjacent to their arts community, Guild of All Arts.

Paul died in 1961 and was buried in Mount Hope Cemetery, Kitchener with his wife who died in 1969.