Robert married Mary Susanne Brown 24 Mar 1872, , , Minnesota, United States. Mary (daughter of Henry Brown and Elizabeth S Strang) was born 11 Sep 1849; died 27 Aug 1903. [Group Sheet]

1. Hugh Everett Houston was born 1872; died 1932.
2. Henry Robert Houston was born 1875; died 1947.
3. Roderick Houston was born 1875; died 1950.
4. George Houston was born 1877; died 1964.
5. Teene May Houston was born Jul 1883; died 1971.
6. Mayme B Houston was born Oct 1884; died 1955.
7. Frances Houston, MD was born Jul 1886; died 1949.