 The high school building was expanded in 1938, and in 1939 it was reorganized as a full 4-year high school under the authority of a school board with state recognition.As Wentzville High School grew in enrollment, a new high school building on Campus Drive was built in 1962.In 1969, the high school was officially named after Emil E. Holt, who had served as treasurer of the school district for 42 years and board member for four years before that.