At its new location, the school was based in one of the largest mansions ever constructed in the United States, Oheka Castle, built by Otto Kahn, a multimillionaire.

Following Kahn's death in 1934, his heirs had little interest in the estate, and the town of Huntington briefly used it as a retirement home for municipal employees.

In 1970 she sold the school to three investors, without notifying the longtime dean and new Headmaster, Leopold Hedbavny, or alumni.

Operating these when gasoline prices began rising became prohibitively expensive, and two were given to the New York City police department.

[citation needed] At the funeral of President John F. Kennedy the riderless horse following Kennedy's caisson bore a saber from EMA which had been presented to the White House by the senior class of 1962 on their class visit to Washington.

The honor society (based on academic grades, military rank, being a class officer, and participation in sports and clubs) was the Order of the Key.

[citation needed] Uniforms worn by cadets followed the style of the United States Military Academy at West Point.

The "uniform of the day" for all cadets included gray pants with a black stripe on each leg.

For parades and other very formal occasions such as dances and the graduation ceremony cadets wore a jacket known as a 44 for the brass buttons on it.

[1] The association's meetings (generally luncheons or dinners) were suspended in April 2020 due to the COVID-19 pandemic, but resumed in May 2021.