Mary Louisa Prieto Acosta
September 12, 1940 – December 27, 2025
Mary Louisa Prieto Acosta was born on September 12, 1940 to Chon Prieto and Jessie Lara. She passed away on December 27, 2025. Mary was the third of four children, including Fr Frank Prieto, Mamie Conner and Robert Prieto. Mary was a loving soul to all, a generous heart, and a lively spirit.
Her early life was spent in Southern California where she met and married Edmund Rudolph Acosta. They were married on November 16, 1974. Mary continued to work for the Oneida company until the couple moved to Redlands. She then worked for the San Bernadino Housing Authority assisting underserved populations.
Mary and Ed shared many adventures together, but they especially loved the adventures they shared bike riding in Southern California. They founded the Redlands Water Bottle Transit Company in 1985, and the club continues today making community cycling fun for all. Separately, Mary also ran several marathons in semi-retirement, winning first place in her age division at age 65. In addition to her athletic endeavors, she enjoyed playing the flute and writing novels.
In 2001, Mary and Ed made a large life change and moved to Point Roberts. Shortly after the move to Washington, they also found a home in Honeymoon Bay, B.C. They joined the PR Wacky Walkers, assisted the lighthouse committee, volunteered at the library, gardened on Tyee Drive, made blackberry pies for many events, continued their biking journeys, and enjoyed life in the Pacific Northwest.
Gabriela and Mia Acosta (granddaughters) will always remember their Nana Mary and Tata Ed’s love and pride for their towns of Point Roberts and Honeymoon Bay. Mary loved her communities and the love came back when neighbors stopped by for a visit offering treats made especially for the family.
We remain inspired by her peaceful wisdom and medicinal humor. It has been our honor to have Mary in our lives. All who knew her will remember Mary’s graceful strength, strong faith, and grounded joy. Siempre en nuestra corazónes, we love you, Nana.
There will be a service in her honor at Sacred Heart Catholic Church in Ladner on Friday, January 30 at 11 a.m., followed by a burial at the Point Roberts Cemetery. A reception will follow at 2 p.m. in Point Roberts at The Pier.
