Ahart married Mary Catherine Sibel on 9 Apr 1885 in Marengo, Iowa County, Iowa, USA. Mary (daughter of Konrad M. Seibel Sibel and Anna Catharina Brater) was born on 14 Jan 1859 in Iowa, USA; died on 15 May 1951 in Madison, Clarke County, Iowa, USA. [Group Sheet] [Family Chart]

1. Nellie Glee Simmerman was born on 2 Feb 1886 in Illinois, USA; died in 0Feb 1977 in Peru, Madison County, Iowa, USA.
2. Myrtle Estella Simmerman was born on 23 Jul 1888 in Illinois, USA; died in 0Sep 1965 in Murray, Clarke County, Iowa, USA.
3. Vance Verne Simmerman was born in 1894 in Iowa, USA.