Karl married Catherine Eleanor Hildebrand on 29 Jun 1897 in Pittsburgh, Allegheny County, Pennsylvania, USA. Catherine (daughter of Anton Arthur Hildebrand and Katherina Bouquio Schrody) was born on 6 Apr 1875 in Pittsburgh, Allegheny County, Pennsylvania, USA; died on 15 Jun 1966 in Pittsburgh, Allegheny County, Pennsylvania, USA. [Group Sheet] [Family Chart]

1. Cecelia Schad was born in 1897 in Pittsburgh, Allegheny County, Pennsylvania, USA; died in 1897 in Pittsburgh, Allegheny County, Pennsylvania, USA.
2. Eleanor Catherine Schad was born on 11 Apr 1898 in Pittsburgh, Allegheny County, Pennsylvania, USA; died on 6 Nov 1983 in Erie, Erie County, Pennsylvania, USA; was buried in Calvary Cemetery, Erie, Erie County, Pennsylvania, USA.
3. Charles Frederick Schad was born on 25 Jun 1899 in Pittsburgh, Allegheny County, Pennsylvania, USA.
4. Bertha Marie Schad was born on 27 Aug 1900 in Pittsburgh, Allegheny County, Pennsylvania, USA; died on 20 Dec 1995 in Florida, USA.