Leonard Calvert was the first proprietary governor of the Province of Maryland. He was the second son of The 1st Baron Baltimore (1579–1632), the first proprietor of Maryland. His younger brother Cecil (1605–1675), who inherited the colony and the title upon the death of their father George, April 15, 1632, appointed Leonard as governor of the Colony in his absence.

Andrew White, SJ was an English Jesuit missionary who was involved in the founding of the Maryland colony. He was a chronicler of the early colony, and his writings are a primary source on the land, the Native Americans of the area, and the Jesuit mission in North America. For his efforts in converting and educating the native population, he is frequently referred to as the "Apostle of Maryland." He is considered a forefather of Georgetown University, and is memorialized in the name of its White-Gravenor building, a central location of offices and classrooms on the university's campus.