Notes:
Data source is "The Mumma Family" by Samuel H. Mumma 1962 & Moomaw book 1990. There is also an entry in Stella Mumma's notebook about Elizabeth and Martin Nissley, In John's Will, he identifies Elizabeth Mumma as his daughter and that the married Martin Nissley.
The "henry ID numbers" for Elizabeth should be changed, since she was the first born and not the last, but
1850: West Donegal, Lancaster Co., PA
Martin C Nisley 48
Elizabeth Nisley 45
Maria Nisley 17
Sarah Nisley 13
Martin Nisley 10
1860 West Donegal, Lancaster Co., PA
Martin R Neissly 57
Elizabeth Neissly 54
Martin M Neissly 19
Ann Hamilton 38
1880: West Donegal, Lancaster Co., PA
Martin R. Nissley 77
Elizabeth Nissley 75