Robert John Stupak, age 73, passed away peacefully on Sunday, February 25, 2024, in Tucson, AZ. He was originally from Mt. Washington then resided in Shaler Twp. for over 50 years. He was the son of the late Michael and Margaret (Bartolick) Stupak; beloved husband of JoAnne Cindy (Cerra) Stupak; loving father of Robert (the late Emilia) Stupak Jr.; loving grandpa of Ciara (Dan) Callanan and Kristine (Josh) Garcia; loving great grandpa of Josh Jr., Anthony, Saige, Nolan, Dylan, Jax, Robbie, Joshlene, and Mason; dear brother of Kenneth (Judy) Stupak, Daniel (Christine) Stupak, and the late Barbara (Surviving Frank) Singleton; he also had many loving nieces, nephews, and cousins. Bob was a graduate of St. Mary of the Mount Class 1968. He served in the US Air Force from April 1969 through February of 1973. Bob drove for the Port Authority and retired to do plumbing with Cerra Plumbing. Bob was proud to belong to the FIT 4 Boxing Club where he participated in their Knockout Parkinsons program. A Funeral Mass will be celebrated in Madonna of Jerusalem Church, Christ the King Parish: 220 9th St. Sharpsburg, PA, on Saturday, April 20 at 10 AM. Burial will follow at Allegheny County Memorial Park with Military Honors. In lieu of flowers, the family graciously requests donations to the Michael J. Fox Foundation for Parkinsons Research.