The Heinl Collection is primarily concerned with Haiti. It includes photographs, print materials, and artwork from the late eighteenth century through to the late twentieth century. The photograph series contains images of Haiti from two periods: the U.S. occupation (1915-1934) and 1957-1971. Both sets have a strong focus on matters of military and diplomatic interest. The print materials include rare books, pamphlets, and letters, most of which are concerned with Haitian history. The art collection includes maps, prints, paintings, and drawings, including a number from colonial Saint Domingue.