1850 Census, PA, Lancaster Co., Penn Twp., p. 345, 13 Sept 1850
Frederick Mummy, 42, laborer, b. PA
Herman " , 6, b. PA
Armin " , 5, b. PA
[it is unclear why Albert, the son, or the mother do not appear in this census. I suspect that the mother died and Albert went to live with his maternal grandmother and grandfather. The next entry fits.]
1850 Census, PA, Lancaster Co., twp of Strasburg, dwelling 41
Henry Hersman, 50, laborer, $250 real estate, b: Germany
Hannah Hersman, 53, b: Germany
Albert Mumma, 1, b: PA
1860 Census, PA, Lancaster Co., Penn Twp., p. 745
Fred Mummer, 52, Shoe Maker, $600 real estate, $50 personal, b. Baden
Herman " , 16, b. PA
Ermine " , 15, b. PA
Albert G. " , 10, b. PA
1870 Census, PA, Lancaster Co., Penn Twp., 3 Aug 1970 White Oak P.O.
Mumme, Arne, 25, Shoemaker, $300 real estate, $100 personal, b. Prussia
" , Frederick, 62, shoemaker, b. Prussia
[Herman is not found in this census and possibly he died. Albert cannot be found in this census]
1880 Census, PA, Lancaster Co., Penn Twp.p. 367, June 7 1880
Mummer, Fritz, 73, retired shoemaker, b. Brownwitz/Brownwitz/Brownwitz
" , Armin, 36, son, laborer, b. PA/Brownwitz/Brownwitz
" , Albert, 30, son, laborer, b. PA/Brownwitz/Brownwitz
Not sure if this is the correct Albert.
1910 Census, PA, Lancaster Co., Mount Joy twp., ED 124, dwelling 133
Mumme, Albert, head, 60, single, b: PA/Germany/Germany, farmer, small farm
There is an Albert Mumma buried in the Trinity Evangelical Lutheran Church Cemetery, in Colebrook, Lebanon Co., PA
The tombstone can be found on find-a-grave
http://www.findagrave.com
Birth: Jan. 1, 1848
Death: Nov. 15, 1915