photographs are divided into seven subseries:
a - architecture
b - arts (theatre, music, dance, arts, crafts)
c - business & industry
d - churches
e - communities in northwestern ontario
f - people, families, & genealogy
g - organizations

records of the thunder bay co-operative dairy, ltd, which operated from 1928 to 1969.

the records include: the board of directors' meeting minutes, which provide detailed accounts of the dairy's management and operation from its founding in 1928 through its eventual liquidation in 1972; a time book listing employee wages and deductions; a financial journal outlining the co-op's final years in production; and a folder containing various news clippings and written notes.