Notes:
1870: Barree, Huntingdon, Pennsylvania
Jackson Mcmahan 39
Amanda Mcmahan 35
Calvin R Mcmahan 11
Anna M Mcmahan 9
Eliza B Mcmahan 7 <=======
William H Mcmahan 4
John T Mcmahan 1
1880: Barree, Huntingdon, Pennsylvania
Jackson Mc Mahan 50
Amanda Mc Mahan 44
John Mc Mahan 85
Rollin Mc Mahan 21
Lydia Mc Mahan 18
William Mc Mahan 14
Thomas Mc Mahan 12
George Mc Mahan 7
Mertie Mc Mahan 3
Harry H. Mumma, "Pennsylvania, Marriages, 1709-1940"
Name: Harry H. Mumma
Spouse's Name: Lydia Mc Mahan
Event Date: 11 Nov 1899
Event Place: Lancaster, Pennsylvania, United States
{available via FamilySearch)
1920 Census, Derry, Westmoreland, PA
Harry H Mumma, head, 53, b: PA/Germany/PA, track foreman, railroad
Lyda Mumma, wife, 54, b: PA/PA/PA
1930 Census, Derry, Westmoreland, Pennsylvania
Harry N Missemer, head, 63, 1st m: @ age 23 yrs. b: PA, foreman steam railroad
Lyda Missemer, wife, 64, 1st m: @ age 33 yrs., b: PA
Donald Helman, grandson, 13, b: PA
1940 Census, Derry twp, Westmoreland Co., PA, Torrance Street
Harry Mumma, head, 72, b: PA, 1935 - same house, retired
Lila Mumma, wife, 70, PA, 1935 - same house
Jackson Knoche, son, 54, PA, 1935 - East Chicago, IN, handyman
Ethel Knoche, dau-in-law, 38, OH, 1935 - East Chicago, IN
Jackson Knoche, grandson, 8, IN, 1935 - East Chicago, IN
Donald Helman, grandson, 21, PA, 1935 - same house, laborer, railroad