Daniel James Tierney

Of Titusville, Florida, passed away, Sunday, October 22, 2023 surrounded by family.  He was born in Pittsburgh, PA, March 26, 1951 to his loving parents Lois and Jack Tierney.

Danny is the beloved brother of Terence Tierney, of Pittsburgh, PA; Marianne (Mark) Valerio, of Prosperity, PA; Margaret (Brian) Darrah, of Valencia, PA, and Kathleen (Joseph) Tuite, of Bradenton, FL. He is the loving uncle of five nephews and one niece and endeared by many other family and friends.

Daniel is preceded in death by his parents, Lois and Jack Tierney and his brothers, J.J. (Linda) and Steven Tierney.

Dan was a Corvette aficionado, pool shark, oil painter & space enthusiast.  He was also a kind and gentle man to all who knew him.

Dan recently retired as Chief Engineer from Kennedy Propellants and Life Support Systems at Kennedy Space Center.  He was a dynamic scientist whose life passion was the shuttle program for over 30 years.  His colleagues described him as a brilliant engineer, mentor and kind soul.  Previously, he worked at Florida Power in St. Petersburg and Crystal River and Penn Electric in Johnstown, PA.  Dan was a Central Catholic & University of Pittsburgh graduate, a precious friend of many.

In lieu of flowers, donations can be made to the American Cancer Society, P.O. Box 6704, Hagerstown, MD 21741.

Friends received at William F. Gross Funeral Home, LTD. 11735 Frankstown Rd. (at Rodi Rd.), Penn Hills on Saturday, November 25, 2023 for A Celebration of Life from 12-2 p.m.

Fellowship will follow at Algonquin Canoe Club, 216 Arch St., Verona, PA 15147. DJ will be missed by all.