Notes:
It would appear that William initially used the MUMAUGH spelling, but eventually changed to MUGHMAW which is the spelling in the 1920 & 1930 census. Most of his children are listed in the SSDI under the Mughmaw spelling.
Indiana marriages,
County: Miami
Name: William R Mumaugh
Spouse: Emma E Baker
Birth Date/Age:
Marriage Date: 14 Jan 1888
Book: C 8
Original Source Page: 129
1900 Census; Butler Township; Miami County, IN Enumeration Dist: 94; Sheet 2B; 6 Jun 1900
Mumaugh, William, Head, W, M, Jul 1868, 32, Marr 12 years, b. IN, Fa: OH, Mo: OH, Occ: Farmer
" , Emma, Wife, W, F, Dec 1869, 30, Marr 12 yrs., 4 children 4 living, b. IN, Fa: OH, Mo: OH
" , Gracie, Dau, W, F, Dec 1888, 11, S, b. IN
" , Russell, Son, W, M, Dec 1892, 7, S, b. IN
" , Ralph, Son, W, M, Apr 1896, 4, S, b. IN
" , Clarence, Son, W, M, June 1899, 11/12, S, b. IN
1910 Census, IN, Miami Co., Butler Twp., ED 113, Sheet 4A, 21 April 1910, p. 182
Mumaugh, William R., head, 42, once married for 22 years, b. IN, Fa: OH, Mo: OH, general farming
" , Emma B., wife, 40, once married for 22 years, 6 children, 6 living, b. IN, Mo:, OH, Fa: OH
" , Grace V., dau 21, single, b. IN
" , Russel J., son, 17, single, b. IN, farm laborer
" , Ralph, son, 14, single, b. IN, farm laborer
" , Clarence, son, 10, b. IN
" , Ruth E., dau, 6, b. IN
" , Louella M., dau, 1, b. IN
1920 Census, IN, Miami Co., Harrison Twp. ED 139, sheet 9a
Mughmaw, William K., Head, age 52, married, b. IN, Fa: OH, Mo: OH, Farmer
" , Emma, wife, age 50, married, b. IN, Fa: OH, Mo: OH,
" , Clarence, son, 19, single, b. IN
" , Ruth, daughter, 16, single, b. IN
" , Luella, daughter, 11, single, b. IN
1930 Census, IN, Miami Co., Harrison Co., ED52-8, Sheet 7A, p. 165, 18 April 1930
Mughmaw, William, head, 62, married age 20, b. IN, Fa: OH, Mo: OH, farmer
" , Emma, wife, 60, married age 18, b. IN, Fa: OH, Mo: OH
" , Ruth, daughter, 26, single, b. IN, works store
" , Luella, daughter, 21, single, b. IN
" , Glen, grandson, 7, single, b. IN
" , Gale, grandson, 5, single, b. IN
" , Lyman, grandson, 3 9/12, single, b. IN