[1] The district's six participating municipalities -- Berkeley Heights, Clark, Garwood, Kenilworth, Mountainside and Springfield Township -- began class in September 1937 at Jonathan Dayton Regional High School in Springfield, which was named for founding father Jonathan Dayton.
The school was constructed at a cost of $2 million and included 94,000 square feet (8,700 m2) of space for classes and other facilities.
[3] In September 1960, Governor Livingston Regional High School opened its doors to 800 students from Berkeley Heights and Mountainside.
[4] The name David Brearley Regional High School was chosen in March 1964 to honor David Brearley one of four New Jersey signatories of the Constitution of the United States, along with Jonathan Dayton and William Livingston who had already had high schools in the district named for them.
[11] In the May 1996 referendum, 55% of ballots cast were in favor of dissolving the district, with "yes" votes prevailing in Berkeley Heights, Kenilworth, Mountainside and Springfield, though 88% of Clark residents and 97% of those from Garwood opposed the measure.