Irwin married Catherine Belle Kindelberger in 1925. Catherine (daughter of Jakob Kindelberger and Susan Ann Prince) was born on 12 Mar 1874 in Wheeling, Ohio County, West Virginia, USA; died on 1 Aug 1933 in Wheeling, Ohio County, West Virginia, USA; was buried on 3 Aug 1933 in Stone Church Cemetery, Wheeling, Ohio County, West Virginia, USA. [Group Sheet] [Family Chart]