Miss Frances E. Snell was instrumental in organizing the Orosi High School District in 1909. Classes were held in the grammar school that year and under the same supervision. High school classes were held upstairs and in one room downstairs. Twenty-nine freshman, two sophomores, and one junior attended. Frances Snell taught mathematics, history, and English while Louise Duncan was in charge of the commercial department and Latin.

By 1910-11, the high school was separate from the elementary grades though still in the same building. A well equipped manual training course was added. In the early part of the third year an efficient chemistry lab was added and housed in a separate building.

The Orosi Union High School graduated its first class in 1912, two students. A permanent site was purchased and temporary buildings were erected to accommodate the school on North Palm Avenue, which is now Road 128. Surplus funds had been accumulated for the purpose. The main structure was of the old California style with boards running up and down. The front of the building was an assembly room with an office adjoining and four classrooms toward the back. Small utility building were in the back. One of these had a loft which was a great attraction for the boys.

Mrs. Goodin related that in 1913, when the Reed home across the street burned, students from the high school rushed over to assist the family. She stated that hay was cut on the school ground. Only the shop building remained of the temporary buildings termed sheep sheds. It was purchased and remodeled into a home by Mrs. George Reynolds.

School growth was indicated in 1914-15 when a class of 15 entered and seven graduated. Bonds wee voted for a new building. In 1917 a combination brick stucco schoolhouse was built with seven classrooms, assembly hall, with an administrative office and faculty room. A gymnasium of brick, and a frame shop building were added in 1922. The homemaking department had a wing to itself. A south wing was added in 1937, and remains after other old buildings burned or were demolished to be replaced by new ones in 1956. The school suffered a destructive fire in 1942. Bonds and state support provided funds for new classrooms and a new gymnasium which was ready in 1951. The other new buildings were occupied in 1954. In 1955 the administration of both the elementary and high schools was placed under one superintendent, each retaining its own principal.

In 1962 a new building consisting of a library, science lab, and classrooms was added.

In 1965 the district unified and the high school students from Badger were included in the district.

In 1969 the old Lovell School was put to use as a second high school for special purposes. It has been successfully operating as a continuation school.

In 1972 the community banded together with much time, equipment, and money being donated to build the football stadium.

Orosi Union High School

Organized in 1909 (a union since 1913) included the following elementary schools: Cutler, Lovell, Orosi Union Elementary and East Orange Cove Joint Union (Fresno-Tulare Counties)

This history of the high school was contributed by Katharine Rafenstein. Mrs. Rafenstein retired in 1960 after giving forty years to the young people of the Orosi area. She came to Orosi in 1920 and married Carl Rafenstein in 1923. She saw the school grow from a faculty of seven to 21 members. She served as Vice-Principal and Dean of Girls. Mrs. Rafenstein influenced many lives in this community.