 On January 10, 1911, Mott married Mrs. Gertrude Bennett in San Francisco.His family lived at three different addresses while he was mayor—1066 Jackson (1905–08), 1509 Webster (1909–1911), and 276 Lee Street in Adams Point (1912–1939)—all since demolished.He served as the city's right-of-way agent from 1927 until his death on December 16, 1958, at the age of 92, at the Athens Athletic Club.