PIQUA - Mary Ann Preston, 78, of Piqua passed away at 3:08 p.m. Monday, November 24, 2025, at her residence. She was born on June 6, 1947, in Portsmouth to the late Alva and Evelyn (Pertuset) Houchen. She married Lowell T. Preston on July 10, 1976, in Troy, who survives. Other survivors include her...