John W. Gierl Obituary
The passing of John W. Gierl of Gibsonia, Pennsylvania occurred on June 13, 2026. John, born on September 9, 1941, shared life with family, friends, and community. Leave a sympathy message to the family in the guestbook on this memorial page of John W. Gierl to show support.
He was predeceased by: his parents, John G. Gierl and Elizabeth Gierl (Smola); and his siblings, Rita Gloff, Mildred Steppan, Gloria Ihnat and Richard Benzer.
He is survived by: his wife Diane Gierl (Klein); his children, Jenifer Henry (Brian), John Gierl and Brian Gierl (Lisa); his siblings-in-law, Linda Renninger and Ronald Klein (Diane); and his grandchildren, Rachel, Tyler, Rebecca, Morgan, Brayden and Sophia.
In lieu of flowers, memorial donations may be made to the Tunnel to Towers Foundation at http://www.t2t.org.
