In 1953, Fort Worth Independent School District purchased a plot of land from Tommy Forbis. Construction started immediately on what was to become Glencrest Elementary School. When the doors opened in 1954, students were welcomed to a ten-room school.
By 1973, Glencrest Elementary had seen two separate expansions that transformed the building. Glencrest Elementary School had grown in size to sixteen classrooms for the first through fifth grade, a new art classroom, a library, and a kindergarten -- all providing extended learning opportunities for the students. However, a declining enrollment of elementary age pupils and a booming population at Forest Oak Middle School lead to the decision to transform the school's mission. In the autumn of 1973, the school changed its name to Forest Oak Annex.
With the beginning of the 1976-1977 school year, the twenty-three year old building witnessed the third name it was destined to carry. Fort Worth Independent School District had selected this building to serve as the prototype of a single-grade school. Thus was created Glencrest Middle School, also known locally as Glencrest Sixth Grade.