The concept to create Southside High School was in a plan released in 1921. On August 1922 the groundbreaking ceremony occurred. Southside High School's first building opened on January 28, 1924. The first principal was Frank M. Edson (died on November 28, 1932). The school district spent $520,376.85 to have the building built. Generally, in the school's history, it took students south of the Chemung River, while
Elmira Free Academy took students north of the Chemung River. The school colors were green and white. The last Southside High facility, on a plot of land, The site had been used for industrial purposes for around 100 years. The property was formerly used by
Remington Rand. In the 1990s public concern about the former industrial use of the school grounds became widespread. A 2018 newspaper article in the
Star-Gazette put attention on the industrial past of the site.
Unisys is funding the cleanup.
Remington Rand, one of the companies that became Unisys, once owned the site. ==Principals==