Data source is the 1990 book, "Moomaw-Mumma-Mumaw-Mumaugh Genealogy" compiled by Robert Austin Moomaw (deceased).
Father:Nicholas Tobias KOONTZ (b. 20 APR 1839, Bruceville, Carroll Co., MD - d. 5 MAR 1926, Mt. Morris, Ogle Co., IL) Mother:Susan MUMMA (b. 28 JUL 1845, IL - d. 1898)
Siblings:
1. Mary E. KOONTZ (b. 26 APR 1868, IL - d. 1895)
2. William W. KOONTZ (b. 22 MAY 1870, Mt. Morris, Ogle Co., IL - d. 1940)
3. Grace May KOONTZ (b. 18 DEC 1871, Mt. Carroll, Carroll Co., IL - d. 1951)
4. Lulu Lee KOONTZ (b. 7 MAR 1876, IL - d. 1952)