The story
Gilman was founded as the Country School for Boys by Baltimore resident Anne Galbraith Carey, with assistance from Daniel Coit Gilman (1831–1908), the first president of Johns Hopkins University (1876–1908). The school opened its doors on September 30, 1897, in the old "Homewood" Mansion off North Charles Street. (The mansion, now known as the Homewood Museum, was constructed in 1800 in Georgian-Federal style architecture, for Charles Carroll Jr. (1775–1825), also known as Charles Carroll of Homewood, son of Charles Carroll of Carrollton (1737–1832), last surviving signer of the Declaration of Independence.) By 1910, Johns Hopkins began moving its campus north from its former downtown location along North Howard Street in the neighborhood of Mount Vernon-Belvedere to the newly named Homewood campus. In that year, the Country School moved to its current 68-acre (28 ha) campus further north in the city, in north Roland Park along Roland Avenue, just south of Belvedere Avenue (and the future Northern Parkway). Here was begun one of the first planned suburban developments in America by the new Roland Park Company in 1891. At that time the institution changed its name to "The Gilman Country School for Boys", in honor of the seminal figure in its founding, Dr. Gilman. In 1951, "Country" was dropped from the name.
Gilman has two sister schools: Bryn Mawr School, across Northern Parkway from Gilman to the north, and Roland Park Country School, across Roland Avenue to the west. All three schools coordinate some Upper School (grades 9–12) classes to the extent that some classes have students from all three schools.
From Wikipedia’s article on Gilman School, shared under CC BY-SA 4.0.4