Guin Foss Elementary is a Title One school in the Tustin Unified School District. Nestled in a quiet neighborhood, Guin Foss Elementary School has been called one of Tustin’s hidden treasures. Guin Foss opened as Vanderlip School in 1957 and was shortly changed to Guin Foss Elementary, honoring the namesake of a District school nurse. Due to declining enrollment our school was closed in 1978, and for years housed the district’s instructional resource center and adult education classes. We reopened in 1997. It was then that our campus began its transformation into the high-achieving, outstanding elementary school that it is today.