Data source is the 1971 self published book by Richard Glenn Huffman [deceased], "George Muma Genealogy".
Data source is Lois Jean Kostro Mumma. E-mail Trapt50@aol.com
Data source is Kevin Sutton. E-mail k_l_sutton@hotmail.com
He and his family are listed in the 1920 Census, MO, Harrison County, Sugar Creek Township. Page 167
1940: Sugar Creek, Harrison, Missouri
J R Mumma, head, 49, b: MO, farmer
Clara Mumma, wife, 49, b: MO
William Harel Mumma, son, 20, b: MO
Father:William Perry MUMMA (b. 30 AUG 1858, OH - d. 23 AUG 1940, Gilman City, Harrison Co., MO) Mother:America MORRIS (b. 17 JAN 1861, Springfield, IL - d. 24 SEP 1944, Gilman City, Harrison Co., MO)
1. Okray Leo MUMMA (b. ABT 1913, MO - d. 26 APR 2007, Wichita, Sedgwick Co., KS)
2. Charles Herbert MUMMA (b. 10 OCT 1915, MO - d. 27 JUN 1982, Pittsburg, Crawford, KS)
3. James Perry MUMMA (b. 11 NOV 1917, MO - d. 4 DEC 2015, Tulsa, OK)
4. William Harold MUMMA (b. 6 SEP 1919, Sugar Creek, Harrison Co., MO - d. 26 MAR 2002, La Cygne, Linn Co., KS)