This collection contains approximately 145 items, primarily correspondence between Jane Aitken and John Vaughan regarding financial matters. Most often these exchanges consisted of a brief note from Aitken to Vaughan explaining her financial needs and requesting a loan or an advance. Unsurprisingly, many of the items relate to the estate of her father Robert Aitken, including several inventories outlining the extent of his debt.

A couple of exceptions to the rather dry nature of this collection: a scathing "anonymous" letter written to John Vaughan and possibly a letter written in response. The dramatic "anonymous" letter accused Vaughan of "cruelty and hypocrisy;" the "response" letter written to a Mr. Fry, possibly Vaughan's attorney, informed him of the last leasing terms to be offered to Jane Aitken. These two letters, written just a few weeks apart, invite speculation into the complicated and inter-reliant relationship between Aitken and Vaughan.

Overall, however, this collection documents the business relationship between Jane Aitken and John Vaughan.