veloping pictures in his dark room to flying airplanes, Jerry was never one to sit around. When he would get a call to help a farmer with their tractor, he dropped everything to help them get back running again. On Tuesday, March 21, 2017, Jerry passed away at North Iowa Medical Center in Mason City, IA. Left to cherish his memory are his wife: Leona of Emmetsburg; five sons: Dan (Cindy) of Davenport, Randy of Emmetsburg, Mike (Kim) of Graettinger, Chuck (Kim) of Emmetsburg and John (Mary) of Mallard; three daughters: Diane Steinberg (Galyn) of Forest City, Janet Johnson (Nick) of Orange City and Cheryl Mendez (Chris) of New Brighton, MN; daughter-in-law, Liz Mammen (the late Marlin Mammen) of Emmetsburg; 32 grandchildren; 55 great-grandchildren; one great-great-grandchild; and his brothe-in-law, Don Crawmer of Graettinger. He was preceded in death by his parents; daughter, Laurie Ann Mammen (1960); his son, Marlin "Marty" Mammen (2014); two grandchildren; three great-grandchildren and his sister, Verna Crawmer.