Mary was the daughter of James Kempton and Mary Killan. The date and place of her birth have not been found.
Her husband was Joseph Torrance. They were married, but the date and place have not been found. Their seven known children were Mary Killan (Mamie (1916-1997), William Kempto (1920-?), Jeani (1923-?), Margare (1924-?), Jessie Burn (1925-?), Catherine Hunte (1929-?) and Georgin (1931-?).