Thomas Arthur

Hackathorn

Thomas Hackathorn, of Rolling Hills Estates, CA passed away peacefully at home on Nov. 3, 2026 with his family by his side. Tom was born on Sept. 18, 1942 in Pittsburgh, PA to Jake and Anna Hackathorn. He is survived by his daughters, Anna Hackathorn and Polly Verfaillie and his grandchildren, Charlotte, Jake, Hendrik and Thomas. Tom was predeceased by his parents and his wife Jill. He attended Penn State and Cornell University, NY graduating with a DVM degree. He treated horses for the first fifteen years of his career, in both NY and CA. For the next twenty-five years, Tom owned the Plaza Pet Clinic, a small animal hospital in Torrance, CA. After he sold his practice, Tom went back to treating horses for the rest of his career. He was an avid sportsman who loved skiing, running, hiking and hunting with his beloved Labradors.