This educational facility was built in 1963 and originally named Ervin H. Thomas School in honor of the previous Superintendent of Schools. The structure was designed as a Junior High School with a large gym/auditorium but was used for grades one through six after completion. The facility had eight classrooms, gym, office, lobby, cafeteria, and small library.

Thomas School remained a K-6 school until 1970 when it became an all-6th grade facility. When Madison Street Elementary School closed in 1980, Thomas School housed K-5 students and all the sixth graders moved to Harris Middle School. In 1989, the school board renamed this facility to Thomas Intermediate School to serve all fourth and fifth graders in the city of Shelbyville. To this date, we remain an intermediate school with ten fourth grade and eleven fifth grade classes.

As enrollment increased, additions were made to accommodate the student population. In 1976 the cafeteria was expanded, and a larger library and two classrooms were added. A few years later seven more classrooms, a resource room, and restrooms were completed. The 1996-1997 school year began in a completely remodeled facility with a total of twenty-four classrooms, a new library, a music room, art room, Title 1 lab, teacher work areas, and new administrative area.

It does not matter what name is given to this facility or what age children it serves; Thomas School continues to meet the needs of this community.