Anthony David (A.D.) Kamzelski, 74, of Ambridge, passed away on April 2, 2024. Born on October 3, 1949, he was a son of the late Milly and Richard Kamzelski and brother of Michael Kamzelski. He is survived by a sister Mary Jo Scassa and Richard (Jerry) Kamzelski, He also leaves behind 4 brother in laws, Richard Eric (Kathleen), Drew, Scott, and the late Craig Tusick, who he loved and considered them all as his brothers. He was a loving father to Shannon (Thomas) Sanders and grandfather to Madison Sanders, who were the joys of his life. He was married to Leslie (Tusick) Kamzelski for 51 years. A.D. was an Ambridge Highschool graduate class of 1967. He was a retired Conrail Conductor. He enjoyed fishing and puzzles of all kinds.  He always saw the good in every single person he knew. A memorial service will be held on April 20, 2024, at 1:00 PM, officiated by Pastor Jill McGregor at the Christ Evangelical Lutheran Church, 399 State Street, Baden, Pennsylvania. Arrangments were entrusted to Alvarez Hahn Funeral Services and Cremation, 547 8th Street, Ambridge.