The account book, roughly 75 pages, details the prices paid Ambrose Nichols for various kinds of work. Although he principally worked on wagons, wheels, sleds and carts, he also mended roofs, worked on houses, plowed, raked, and did odd jobs for local farmers. The accounts begin when Nichols was 49 years old and run until he reached 70, just three years before his death. They are arranged in a haphazard manner in the book, with only a few entries giving the means by which the debts were paid.

Many of the names in the accounts overlap with the farmers and mariners for whom the Cohasset farmer Job Cushing (MS 207) also did work.