Ben Oliveros, a retired associate warden from RJ Donovan Correctional Facility (RJD), passed away Aug. 20, 2025.

Oliveros began his career with the department in December 1974 as a correctional officer at the Correctional Training Facility (CTF). In July 1982, he promoted to correctional sergeant at the California Institution for Women and transferred back to CTF as a sergeant in May 1983.
Oliveros was then promoted to correctional lieutenant at CTF in April 1985. Then, two years later when RJD was activated in 1987, he transferred to the new institution.
In May 1989, he took a position as correctional counselor II (CCII) and then CCII supervisor in October 1990.
He was promoted to captain at RJD in June 1994. Oliveros then promoted to associate warden at Chuckawalla Valley State Prison in December 1999. He transferred to RJD as an associate warden in March 2004, where he remained retiring in December 2005.
“Ben Oliveros will be remembered by all his family and friends here at RJD,” according to the institution. “We thank him for his service and dedication.”
Details regarding arrangements were not provided.
Follow CDCR on YouTube, Facebook, X (formerly Twitter). Listen to the CDCR Unlocked podcast.
Read more tributes to staff and retirees who have passed away.
Related content
San Quentin mourns passing of Officer Michelle Jones‑Harris
Michelle Jones-Harris, a correctional officer at San Quentin Rehabilitation Center, passed away July 21, 2026. Jones-Harris began her career at…
Watch: Agent Byrd memorialized at training center, CMF
Two CDCR memorial ceremonies honored fallen Parole Agent Joshua Byrd, marking one year since his passing. At California Medical Facility…
Ismael Martinez, retired correctional lieutenant
Ismael Martinez, a retired correctional lieutenant from Central California Women’s Facility in Chowchilla, passed away July 14, 2026. He worked…
CMF mourns loss of Melissa Boos, management services tech
Melissa Boos, a management service technician at California Medical Facility (CMF) in Vacaville, passed away July 21, 2026. She worked…
CSP‑Solano mourns loss of Kevin Thomas, health records tech
Kevin Thomas, a health records technician at California State Prison-Solano, passed away June 22, 2026. Thomas began his career as…
San Quentin mourns passing of Jonathan Castillo, office tech
Jonathan Castillo, an office technician at San Quentin Rehabilitation Center, passed away Feb. 1, 2026. Castillo began his career at…