Records and reference material from five major research projects sponsored by the Finlandia Club and other organizations.

• Bay Street Project I: A study of Finnish immigration to Canada
• Bay Street Project II: A study of Finnish settlements in the rural Thunder Bay District
• Bay Street Project III: A study of sports and athletics in the Finnish community in Thunder Bay
• Bay Street Project IV: A study of religion and churches in the Finnish community in Thunder Bay
• Bay Street Project V: A study of the arts in the Finnish community in Thunder Bay, including literature, theatre, and music

Minute books and membership books for the Finnish Athletic Club "Nahjus" and its Youth League.

Collection is organized into the following series:
I. Hoito Restaurant
II. Port Arthur Workingmen’s Association: Imatra no. 9
III. C.T.K.L. (Canadian Industrial Unions: Port Arthur’s Finnish Association)
IV. C.U.T. (Canadian News Service) and C.T.K.L.
V. Finlandia Club
VI. Finnish Socialist Local no. 6: Port Arthur
VII. Lumber Workers’ Industrial Union of the One Big Union
VIII. New Attempt Temperance Society
IX. Finnish Athletic Club: Nahjus
X. Finnish Building Company
XI. Miscellaneous