The first three boxes in this collection contain the research notes of Ellsworth on Addison Pratt. Boxes 4-11 contain multiple drafts and biographical notes used to write the book. Box 12 includes maps and more research. Box 13 consists of correspondence regarding the research and publication of The Journals of Addison Pratt. Finally, boxes 14 and 15 deal with the final printing, marketing, and distribution of the book