The papers consist of correspondence, writings, personal papers, diaries and journals, photographs, and scrapbooks relating to the life and career of Loomis Havemeyer. The collection documents Havemeyer's childhood, his experiences at Hill School, undergraduate and graduate studies at Yale University, as well as his lengthy career as an instructor and an administrator at the university. Details regarding Havemeyer's personal life are recorded primarily in his diaries and in his autobiographical writings. An audiotape of his memorial service is included. The papers also include travel diaries of Loomis Havemeyer's sister, Julia Loomis Havemeyer, which record in detail her summer travels abroad.