When LCI became too small for the city's growing population in 1950, a new building was constructed on the same block just east of the old one. Due to southern Alberta's booming population, twenty-one schools were constructed in Lethbridge between 1946 and 1965. Grades 10–12 were moved to the new building while grades 7–9 remained at their present location. The new junior high was renamed Lethbridge Junior High School, but kept the name for less than a year. In the latter part of 1950, the junior high adopted its new name, Hamilton Junior High School (named after a former teacher, principal, and superintendent, William Alfred Hamilton). The school kept the name for over half a century until its relocation to the rapidly expanding area of West Lethbridge as G.S. Lakie Middle School in 2003.