Sandra “Sandy” Diane Mittendorf

Sandra (Sandy) Diane Mittendorf, age 75, passed away peacefully on January 24, 2026, at Hospice of the Valley’s Levine House in Phoenix, Arizona, after a courageous four-month battle with dementia.

Sandy was preceded in death by her parents, Robert and Myrtle Palmer; her brothers, Will Simpson, Bill Simpson, and Bob Simpson; and her sister, Shirley Simpson.

She lived a full and active life, deeply enriched by family, friends, and service to others. Sandy was involved in many community activities, including her dedication to the Cub Scouts and her service as a member of the Catalina BSA Council. In more recent years, she devoted her time and heart to the Arizona Jack Russell Rescue, where her compassion and commitment helped more than 500 terriers find loving forever homes.

Sandy is survived by her beloved husband of 55 years, Gary; her son, Jason; and her daughter-in-law, Jeanette. She was a proud Arizona resident for 70 years and cherished the life she built with her family there.

At this time, no memorial or funeral service will be held. Arrangements for a service will be made at a later date. Bunker Garden Chapel, located at 33 N Centennial Way in Mesa, is overseeing final arrangements.

In lieu of flowers, the family kindly requests that donations be made to Hospice of the Valley in her honor.

Arrangements by Bunker’s Garden Chapel, www.bunkerfuneral.com. Should this obituary appear anywhere but bunkerfuneral.com, please check our website for accurate details and service information.