Nothing further is known about Webster - he appears in the 1880 census with his parents.
Father:John E. MUMMA (b. 14 APR 1856, Boonsboro, Washington Co., MD - d. 21 MAY 1919, Washington Co., MD) Mother:Arbelin N. YESSLER (b. 4 MAY 1858, Washington Co., MD - d. 14 NOV 1936, Washington Co., MD)