Delmar D. Ristau, 76, of Warren, PA, passed away after an extended illness at Twinbrook Heathcare and Rehabilitation Center in Erie, PA, on Monday, October 20, 2026.

He was born in Warren, PA, on July 16, 1950. He was the son of the late Esther Ristau. He was raised by his maternal grandparents, the late Charles and Pauline Ristau.

He married his wife, Wendy (Marcy) Ristau, on June 29, 1984.

Delmar served his country in the United States Army during the Vietnam War; he was stationed in Thailand as medic. After discharge, he earned his Bachelor’s Degree from (PennWest) Edinboro University and his Master’s Degree from Penn State University. He worked as a reporter and photographer for the Warren Times Observer prior to his retirement. In his free time, he loved to read books, specifically on history and politics. He was big into NPR radio and watching the news. He enjoyed sitting on his porch, especially with his dog, Cooper.

Delmar is survived by his wife, Wendy; his children, Adam Ristau, Neil (Autumn) Ristau, and stepdaughter, Martha (Joseph) Marshall; his grandchildren, Dustin, Cody, Nathan, Sophie, Nicholas, Henry, and Natalie; and his siblings, Randy Reist, Paula Cornelius, and Carol “Candy” Collins.

In addition to his mother and maternal grandparents, Delmar was preceded in death by his brother, Richard Reist.

Funeral arrangements have been entrusted to Peterson-Blick Funeral Home, Inc. 1003 Penna Ave E, Warren, PA, 16365. A Celebration of Life for Delmar will be held at the Clarendon VFW, 22 Brown Ave, Clarendon, PA 16313, on Monday, October 26, 2026, starting at 11am, with Military Honors presented at 11:15am by the Clarendon VFW Honor Guard.

Online condolences may be made to the family at www.petersonblickfuneralhome.com or on the funeral home’s Facebook page.