1  Susan M. Mumma (28 Jul 1845 IL – 17 Jul 1898 Ogle Co, IL)   +  Nicholas T. Koontz       2  William W. Koontz (22 May 1870 Mt. Morris, Ogle Co, IL – 1940 Mt. Morris, Ogle Co, IL)         +  Sarah A. Domer (10 Jul 1873 Leaf River, Ogle Co, IL – 1940)            3  Vivian Pauline Koontz                +  Merle C. McKee