File contains 1 bound volume consisting of copies of correspondence written by Joseph Frobisher while he held an important role in the North West Co. from 15th April 1787 to 20th October 1788. All letters written from Montreal and sent to various business relations.

File contains a 6 year business agreement including Todd McGill and Co. and Forsyth Richardson and Co. as partners in the North West Co. in 1792.