Notes:
Data source is the 1990 book, "Moomaw-Mumma-Mumaw-Mumaugh Genealogy" compiled by Robert Austin Moomaw (deceased).
The marriage to George McMahon is speculative! Nettie and George are living 2 houses away from Philip and Elizabeth Moomaw in th 1900 census. Also, Nettie's birth year is correct as well as her parent's states of birth, Virginia and Canada
1870 Census, IA, Pottawattamie Co., Council Bluffs, dwelling 255
Moomaw, P., 39, carpenter, b: VA
" , Lizzie, 24, keeping house, b: Canada
" , Alice, 15, b: IN
" , Orvill, 12, b: IA
" , Lillie, 10, bb: IA
" , Nellie, 3, b: IA
" , Baby, 4/12, b: IA, b: Jul
1880 Census, IA, Pottawattamie Co., Council Bluffs, Kane twp., ED 191, dwelling 191
Moomaw, P. D. 48, m:, carpenter, b: VA/VA/VA
" , Lizzie, 35, wife, m: keeping house, b: Canada/Eng/Eng
" , Orville, 20, son, single, laborer, b: IA/VA/Canada
" , Lily, 18, dau, single, b: IA/VA/Canada
" , Nettie, 13, dau, single, b: IA/VA/Canada
" , Percy, 10, son, single, b: IA/VA/Canada
" , Loyd, 2/12, son, single, b: IA/VA/Canada
The are living next to her parents in 1900.
1900 Census, IA, Pottawattamie Co., Council Bluffs, Kane twp., ED 134, 324 Logan St., dwelling 217
McMahon, George E., hea, Jun 1857, 43, m: 11 yrs., b: IA/?/CT, traveling rubber company
" , Nettie, wife, March 1867, 33, m: 11 yrs, 1 child, 1 living, b: IA/VA/Canada
" , Edward Earl, Oct 1889, 10, b: IA/IA/IA
1910 Census, IA, Pottawattamie Co., Council Bluffs, Kane twp., ED 134, 601 N. 2nd St, dwelling 124
McMahon, George E., head, 53, m1 21 yrs., b: IA/OH/CT, retail merchant, shoes
" , Nettie B., wife, 43, m1 21 yrs, b: IA/PA/Canada
" , E. Earl, son, 20, single,b: IA/IA/IA, salesman, retail shoes
" , Ned Coms, son, 8, single, b: IA/IA/IA
" , George, son, 4, single, b: IA/IA/IA