Sons and Daughters of the Pioneers Choir fonds
Sons of England Benefit Society fonds
South African War Veterans Association fonds
Sprigs O'Heather fonds
St. Anthony’s Home fonds
St. David’s Society fonds
St. Paul's Church fonds
Stanley Gutheridge fonds
Starr's Point Temperance Society fonds
Summerside School District #269 fonds
T. M. Morgan fonds
The Collegiate Outlook collection
"The Great War: I Was There!" Magazine collection
The Slade Gallery and Bridge Artist Co-operative fonds
The Study Club Program collection
