Duane Ray Mummelthie, 84, unexpectedly passed away on Tuesday, February 2, 2021, in his Gilbert, Arizona, home. A private family service will be held on Sunday, February 7th, 2021 at Falconer Funeral Home in Gilbert, AZ. A private family service will also be held in Mason City, IA, before his burial at Elmwood St. Joseph, Mason City. A public celebration of life will be held at a later date. Duane was born on June 17, 1936, the son of Fred and Esther (Kummelehne) Mummelthie of Frederika, IA. When Duane was ten, the family moved to Rockford, IA, where he graduated from Rockford High School in 1955. On June 18, 1956, Duane married Carol Gustafson, and together they had four children. After 43 years of marriage, Carol passed away on November 21, 1999. For many years, Duane was the Head Custodian at Mason City Community Schools. Before moving to Arizona, Duane was an active member of Wesley United Methodist Church in Mason City, IA; as well as the Wigwam and Wagon Club. He also enjoyed spending time outdoors: fishing, camping, golfing, and landscaping. Duane married Marlayn (Larson) Stauffer on March 28, 2009, and the two of them lived together in Gilbert, AZ, for the past 11 ½ years. Together they enjoyed traveling, fishing, and time with family and friends. Duane had the heart of a servant and was an active member of the Band of Angels, assisting people with maintenance projects within their community. Duane liked to entertain his guests with his excellent cooking skills and his charming sense of humor. Those left to cherish memories of Duane are his wife, Marlayn, of Gilbert, AZ; three sons: Dale (Joan) Mummelthie of Arizona, David (Debbie) Mummelthie of Wisconsin, and Steve Mummelthie of Iowa; one daughter: Paula Ring of Colorado; one granddaughter, Julia; siblings: Bob Mummelthie, Donna Wendt, and Bert Ann (Chuck) Ray; and many nieces and nephews. Duane is preceded in death by both his parents, Fred and Esther Mummelthie; siblings Don Mummelthie, Betty Graham, and Gene Mummelthie; and his first wife, Carol. Memorials may be directed to the Broadway Christian Church, 7335 E Broadway Rd, Mesa, AZ 85208 or Wesley United Methodist Church, 1405 S Pennsylvania Ave, Mason City, IA 50401.