The fonds consists of documents and letters accumulated during the course of Griffin's legal career, including: dockets of the firm Griffin & Sewell, 1833-1875; legal notes by Griffin concerning wills, sales, and mortgages 1850-1876; legal documents of property transfers and marriage contracts 1826-1860; and notes on marine insurance in the St Lawrence 1843-1848. There are as well two notebooks of legal definitions, dating from approximately 1860.

Fonds consists of primarily financial and legal records related to property transfers and the estates of members of the Dawes and Leishman families. It includes land sale deeds, court documents, invoices, receipts, and wills. Business and legal affairs of James P. Dawes, his wife Elizabeth Leishman, and their son Albert F. Dawes are represented in the fonds. Business deals associated with James P. Dawes include with Grand Trunk Railway Company of Canada. Many legal documents in the fonds are related to land holdings and property in Lachine, Quebec.

This material documents the estate of Mrs. Charlotte Frobisher and includes a copy of her will and an inventory, 1820.