In its seventy year history, the camp hosted a number of prominent future writers, businesspeople, and politicians.

Camp Mishmar was founded by Chaim Pripstein, a Hebrew teacher at United Talmud Torahs who had fled Poland to Canada before World War II.

[2] A Hebrew teacher at United Talmud Torahs, Pripstein became a peddler in the Laurentians to supplement his income, acquiring land from a local farmer near St. Jerome in 1941.

[6] The camp relocated to the shore of Lac des Trois Frères in St. Adolphe d'Howard in 1954, after local authorities deemed the river running through the original site polluted.

[7] Camp Mishmar boasted top-quality sports facilities, including a covered pool, a covered basketball court, a 1,765-square-metre (19,000 sq ft) sports complex with an indoor roller rink, skate park and rock climbing centre, and an indoor ice rink.