George Tanimura, the eldest son of a large family, was born July 1, 1915. George began learning the family iceberg lettuce business by thinning the crop, when he was just a grammar school student. When his father passed away, George assumed responsibility for the family and its farm, and guided the family through numerous historical and economic challenges. By the 1950's, the Tanimuras were harvesting more than 200 acres of iceberg lettuce exclusively for Bud Antle. As George's relationship with Bud and his son, Bob, continued, the families formed a cohesive partnership.

George has established a reputation for integrity and humility, and always receives a great deal of respect from his colleagues. He is credited with introducing eco-friendly drip irrigation into a substantial portion of the land that Tanimura & Antle farms, and continues to monitor the systems to look for ways to improve them. George still walks the fields every day, inspecting the crops and maintaining his close relationships with the crews.