Data Source was William W. Mumma. Some information was compiled in 1912 by his mother. Additional information came from the notebook of his niece, Stella M. Mumma.
Data soure is "Early Dauphin Co. Families and their Descendants"
Worked as a carpenter for a few years.
The 1900 Census lists Stella as living at home and being born Feb 1882 and Gilbert as 1884. Mary is listed as giving birth to 3 children, 2 are still alive which would be Stella and Gilbert.
Shoop's Church Cemetery - Dauphin County, Pennsylvania
http://www.interment.net/data/us/pa/dauphin/shoops.htm
MUMMA, Gilbert Henry, b. 18 Apr 1890, d. 11 May 1932, par. (Isaiah & Mary SHELLAHAMER MUMMA, [SH]
MUMMA, Isaiah, b. 3 Feb 1859, d. 14 Jan 1927, sp. Mary SHELLAHAMER, [SH]
MUMMA, Mary SHELLAHAMER, b. 6 Mar 1859, d. 27 Jan 1950, sp. Isaiah MUMMA, [SH]
MUMMA, Stella Mary MUMMA, d. 01 Nov 1974, par. (Isaiah & Mary SHELLAHAMER MUMMA, [SH]
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Dauphin County History
Mumma, Isaiah was born in Fishing Creek, West Hanover, Dauphin Co, Feb. 3, 1859, s/o John and Sarah (Florey) Mumma. He married April 18, 1880 to Mary, d/o Thomas and Kate (raver) Shellahamer. Children; Stella M. and Gilbert.