Notes:
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