This family has me at a stone wall also. Hiram was born in Decatur County, IN and Mary Ann was born in Scott County, KY. They had 8 children:

Thomas J b 1835

William W b 1838

John Milton b 6 Sep 1839 d 6 Apr 1915 m 24 Oct 1867 to Martha Jane Davis b 31 Jan 1840 d 11 Mar 1936

Frances A b 1842

Harriet b 1844

Hiram Samuel b 19 Nov 1847 m 19 Aug 1869 in Richland County, IL Rebecca A Morrison m 5 May 1920 Josephine R Richardson

Margaret b 1849

Amanda J b 1853

Hiram married a "Lucy" after Mary Ann died. They are buried in Maple Dale Cemetery in Olney, IL