About 1,500 items. Dutton moved his company's headquarters to New York in 1877, and he forged a strong relationship with J. M. Dent in the early-20th century. The company became a co-sponsor of Everyman's Library in 1906, with Dutton's chief responsibility being the distribution of Everyman's Library volumes throughout the United States. John Macrae ran the company between 1913 and 1943 and was succeeded by son, Elliott Macrae. There is also correspondence, 1936-1959, between Elliott Macrae and the Dent editorial staff.
Correspondence also includes information on book sales in the United States.