Series 1 consists of autograph and typed letters from Eugene O'Neill to 17 recipients, including: Cynthia Chapman Barnett, Carol Bird, Ernest Boyd, Whit Burness, St. John Ervine, Norman Hapgood, Horace Liveright, Richard Madden, Jane Malmgren, Leon Mirlas, Lester Roberts, Milton Salsbury, Robert Sick, Nellie Tharsing, Maurice Wertheim, etc. Arranged alphabetically by sender's last name, 92 items total.