The United States Congress passed the Smith-Hughes Act in 1917, which gave federal aid to the states for high schools that would include vocational training programs in their curriculum. The Kimball County High School was part of this program. In the 1930's, the classes in agriculture were held in the basement of the first high school building. Home economics classes were held in the basement of the new high school. Later in the 30's, classes in shop were held in the octagon shaped building on the fairgrounds.
The first gym for KCHS was built in 1915, by the manual training students at a total cost of $1,500. The school district provided $670, and the remainder of the cost was contributed by businessmen of the community.
On February 13, 1920, bids were let on a new county high school (seen at left). The low bidder was J.R. Tritt for $63,000. However, various complications eventually pushed the overall cost of the new school to approximately $132,000. Later in 1940 a west wing was added at a cost of $19,000. This building later was used from 1965 to 1997 as the Middle School (Grades 6-8) for Kimball Grade Schools. According to the Observer on June 4, 1925, the class of 1921 were the first graduates on May 27, 1921.