Data source is the 1990 book, "Moomaw-Mumma-Mumaw-Mumaugh Genealogy" compiled by Robert Austin Moomaw (deceased).
The existance of William is questionable
Father:Abraham H. MUMMA (b. 19 DEC 1826, Washington Co., MD - d. 7 MAR 1889, Washington Co., MD) Mother:Ellen FINNEGAN (b. 23 DEC 1832, Washington Co., MD - d. 28 APR 1877, Altoona, PA)