Russell married Susan Malona Mace on 18 Apr 1867 in Hancock, Illinois. Susan (daughter of Simeon Edgar Mace and Nancy Margaret Lemar) was born on 11 Aug 1843 in Muskingum, Muskingum, Ohio; died on 25 Nov 1883 in Allerton, Wayne, Iowa; was buried in 1883 in Allerton, Wayne, Iowa. [Group Sheet]

1. Calvin Curtis was born on 24 Jan 1868 in Illinois; and died.
2. Jerusha Alma Curtis was born on 11 Mar 1870 in Iowa; died in 1890 in Iowa.
3. William H. Curtis was born on 21 Jun 1872 in Illinois; and died.
4. Melvin Elmer Curtis was born on 20 Jan 1875 in Illinois; and died.
5. John L. Curtis was born on 18 Jun 1878 in Illinois; died on 21 Oct 1884 in Allerton, Wayne Co., Iowa.
6. Albert Curtis was born on 14 Aug 1881 in Iowa; died in 1896 in Iowa.
7. Anna Curtis was born on 14 Aug 1881 in Iowa; died in 1882 in Iowa.