David Pierson Mosher, 56, of Montour Falls, passed away on January 17, 2023 at Arnot-Ogden Hospital in Elmira, NY. He was born in Ithaca, NY, on July 10, 1966. He was predeceased by his father, Pierson (Pete) Mosher and his sister, Deborah Mosher. He is survived by his mother, Gloria Burnett Mosher; his brother, James John Mosher; Jason and Travis Johns who he considered his sons; his two close friends, Clifford Lott and Shane Dunn; three cousins, Dale Bradley (Sonnie), Daniel Bradley (Sherrie) and Donna (Tom) Taber; and by his two dogs, Paisley and Sadie. David worked in construction and was highly proficient with computer work. He was very active with the Odessa Conservation Club and spent many hours as an instructor of fire arms. He was a member of the Moose Club in Montour Falls. A celebration of life for David will be on Friday, February 10, 2023 from 5-8 pm at the Montour Moose Lodge, 2096 State Route 14, Montour Falls, NY 14865.