Fonds consists of 6 volumes of the Saint John Naturalists Club minutes dated 1962-1980 and September 1985 - January 1990. They include the names of the executive and some names of general members, there is also a 1974 list of members. Club activities are documented, especially their annual participation in the Christmas bird count, organized by the National Audubon Society in the United States and later by Bird Studies Canada. Considerable information about species of birds spotted, location, and names of participants is included.
There are a few financial statements and some typed notices and newsclippings concerning scheduled meetings. Copies of the club newsletter are also included. There is also a resolution sent to the McKenna government about the club's opposition to development of a coal-oil port at Musquash Harbour estuary. It includes a proposal to make the site a protected natural area.