Michael Jay Hennessey, 41, of Mountville, passed away at his residence after a courageous battle with cancer. Born in Seoul, South Korea, he was the son of John and Grace (Ganci) Hennessey and the wife of Lindsay (Thomas) Hennessey. For more than 18 years, Michael worked as a software developer in the global aerospace and defense industry.

A memorial service will be held at Calvary Church, Lancaster, on Monday, November 24, 2025.