John B. “Jack” Kirk, 71, of Butler passed away on Wednesday, December 1, 2021. He was born in Butler on December 10, 1949 to the late John Kirk Sr. and Frances E. (Haley) Mohn. John loved the gym, hunting, fishing, meeting friends for coffee, and especially playing drums in bands at bars and restaurants. He was also known for his good heart and hardworking personality. John was the father of Sean Kirk; brother of Michael Mohn, Patrick (Gina) Mohn, Jay (Denise) Mohn, Lee (Pam) Mohn, and Dean (Alice) Mohn; and grandfather of Kyra Robinson. He will be forever missed by Sue Cullem and Kathy Snyder. Friends received on Sunday, December 5, 2021 from 6-8 PM at the SPENCER D. GEIBEL FUNERAL HOME & CREMATION SERVICES, 140 NEW CASTLE RD, BUTLER, PA 16001, WWW.SPENCERDGEIBEL.COM. A prayer service will immediately follow in the funeral home