We know that Nathan died prior to 1900 because that census lists Mary as having given birth to 5 children and 4 living. The last two girls are living at home and we know that John and James lived.
Father:Samuel J. MUMAW (b. BET 1861 AND 1865, Civil War - Union - Company E, 95th PA - d. 30 NOV 1903, Washington, DC) Mother:Mary A. KARCHER (b. FEB 1844, PA)