In 1948, Coffield Stadium was replaced by the larger Allentown School District Stadium. The Coffield facility became an athletic field for the high school until 1971. In 1949, the Vocational Annex, called the St. Cloud Street building was opened which provided room for masonry and auto body repair training. Those classes were moved in 1957 to the new Brick and Auto Body building was opened at the location of the unused Coffield site, which the seats were removed in 1955 to be the visitor's stand on south side of the ASD stadium along Linden Street. The St. Cloud building was then used for several chemistry labs. Also in 1957, the Linden Street Wing was opened on part of the old Coffield site with the Hunsicker and the Nineteenth Street machine-welding shop classes being moved into it, along with additional classroom space.