John C. McMahan

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John C. McMahan

Mass of Christian Burial for John McMahan, 74 year old long time Buffalo resident who passed away Tuesday at the Johnson County Health Care Center, will be celebrated Monday, June 16th at 10:00 a.m. from the St. John the Baptist Church in Buffalo with Father Pete Johnson as Celebrant. A vigil service, Rosary and time of sharing will be held Sunday at 7:00 p.m. from the Catholic Church. Visitation will be held from the Harness Funeral Home Chapel on Sunday from 9:00 a.m. until 5:30 p.m. Interment will be in Willow Grove Cemetery with graveside services to follow the Mass. Donations in John’s memory may be made to the Northern Wyoming Mental Health Foundation or the St. John the Baptist Catholic Church Foundation in care of the Harness Funeral Home at 351 N. Adams in Buffalo. Condolences may be left online at

John Charles McMahan was born on May 25th 1940, in Meadville, Pennsylvania, the second oldest of 10 children born to John and Verena McMahan. He started grade school in Meadville and moved with his family to Pojoaque, New Mexico and attended school in Espanola. The family then moved to Albuquerque where he finished grade school and graduated from St. Mary’s High School in Albuquerque with the class of 1957. After high school he attended Regis College in Denver where he received a B.S. in Psychology. He then attended the University of Denver where he received a Master’s Degree in Psychiatric Social Work. After his Master’s he took a job with Fort Logan Mental Health Center in Denver, Colorado. He was married on February 19, 1966, in Trenton, Illinois to Dolores Cervenka and they made their home in Evergreen, Colorado and John continued with Fort Logan Mental Health Center until July of 1967, when they moved to Buffalo and he went to work for The Northern Wyoming Mental Health Center. He continued with Northern Wyoming Mental Health for 41 years, spending 23 years as their director. He retired in 2008 and continued living in Buffalo until his death.

He was a member of the St. John the Baptist Catholic Church where he was also a member of the Diocesan Pastoral Council from the Sheridan Deanery. He was an avid photographer, reader, and historian. In his younger years he loved riding horses, hiking, camping and spending time in the mountains. His passion was his family and spending all of the time he could with them. He rarely missed a ball game or athletic event of his kids or grand kids.

He is survived by his wife Dee of Buffalo; Three daughters, Janina Gibbs and her husband Jim of Arvada, Wyoming, Kristina Nunn and her husband J.T. of Laramie, Wyoming and Catherine Miner and her husband Tim of Henderson, Nevada; one son, Luke McMahan and his wife Jennifer of Buffalo; three brothers, Bill McMahan of Rock Springs, Wyoming, Tom McMahan of Evans, Colorado, and Chris McMahan of Albuquerque, New Mexico; six sisters, Helen Guzman of Rio Rancho, New Mexico, Connie Fabry of Omaha, Nebraska, Elizabeth Stowe of Independence, Missouri, Margaret Aho of Pocatello, Idaho, Teresa Grachek of Albuquerque and Monica Coan also of Albuquerque; one sister-in-law Toni Cervenka of Buffalo one niece, who was like a daughter to him, Lexie Cervenka and her husband Ryan of Pittsburgh, Pa. and seven grandchildren Megan and Zachary Gibbs of Arvada, Wyoming, Garrett and Colter Nunn of Laramie, Nate and Noah Miner of Henderson, Nevada and Casey McMahan of Buffalo . He was preceded in death by his parents.