John married Susanah "Susan" McFadden on 22 Aug 1844 in Clark County, Ohio, United States. Susanah was born in 1827 in Ohio, United States; died before 1870. [Group Sheet] [Family Chart]

1. Cyrus L. Wallace was born in 1845 in Ohio, United States; died on 17 Jun 1862 in Columbus, Hickman, Kentucky, United States.
2. William S. Wallace was born in 1847 in Ohio, United States; and died.
3. George R. Wallace was born in 1849 in Ohio, United States; and died.
4. Amanda Isabelle Wallace was born on 30 Mar 1851 in Clark County, Ohio, United States; died on 22 Aug 1922 in Shelbyville, Shelby, Indiana, United States; was buried on 24 Aug 1922 in Shelbyville, Shelby, Indiana, United States.
5. Mary Catherine Wallace was born on 30 Apr 1853 in Clark County, Ohio, United States; died on 11 Feb 1930 in Shelbyville, Shelby, Indiana, United States; was buried on 13 Feb 1930 in Miller Cemetery, Shelbyville, Shelby, Indiana, United States.
6. Sarah Ellen "Ella" Wallace was born on 25 Aug 1855 in Sumner, Lawrence, Illinois, United States; died on 4 Jul 1935 in German Township, Clark, Ohio, United States; was buried on 6 Jul 1935 in Donnelsville, Clark, Ohio, United States.
7. John O. Wallace was born in 1858 in Illinois, United States; and died.
8. Leonidas D. "Lee" Wallace was born in Apr 1861 in Illinois, United States; and died.
9. Lafayette Wallace was born in 1862 in Illinois, United States; and died.

John married Grace after 1870 in Illinois, United States. Grace (daughter of Living) was born in 1833 in New York, United States; and died. [Group Sheet] [Family Chart]

1. Maggie Wallace was born in 1872 in Illinois, United States; and died.
2. Jessie Wallace was born in 1876 in Ohio, United States; and died.