| Sources |
- [S46] COLLECTION: BVIPA.
Glass negatives
- [S139] COLLECTION: BVICA.
- [S1146] COLLECTION: NMAI.
Trio Photograph and Supply Company photographs from British Columbia; URL (accessed 18 Sep 2021): https://americanindian.si.edu/collections-search/archives/sova-nmai-ac-134
- [S140] COLLECTION: BVIPM.
Glass negatives; ethnographic subject matter
- [S782] HEN03, (Vancouver: Henderson Publishing, 1903).
Vancouver and Victoria: not listed
- [S783] HEN04, (Vancouver: Henderson Publishing, 1904).
Vancouver and Victoria: not listed
- [S785] HEN05, (Vancouver: Henderson Publishing, 1905).
Vancouver and Victoria: not listed
- [S786] HENVAN05, (Vancouver: Henderson Publishing, 1905).
Vancouver: not listed
- [S784] HENVIC05, (Victoria: Henderson Publishing, 1905).
Victoria: not listed
- [S787] HENVAN06, (Vancouver: Henderson Publishing, 1906).
Vancouver: not listed
- [S788] HENVAN07, (Vancouver: Henderson Publishing, 1907).
Vancouver: not listed
- [S789] HENVIC08, (Victoria: Henderson Publishing, 1908).
Victoria: not listed
- [S792] PROVI09, (Victoria: Provincial Publishing, 1909).
Victoria: not listed
- [S732] HEN10, (Vancouver: Henderson Publishing, 1910).
Victoria: not listed
- [S793] HENVIC10, (Victoria: Henderson Publishing, 1911).
Victoria: not listed
- [S796] HENVIC12, (Victoria: Henderson Publishing, 1912).
Victoria: not listed
- [S798] HENVIC13, (Victoria: Henderson Publishing, 1913).
Victoria: not listed
- [S801] TREVIC14, (Victoria: Tregillus-Thompson Ltd., 1914).
Victoria: not listed
- [S745] HENVIC14, (Victoria: Henderson Publishing, 1914).
Victoria: not listed
- [S802] HENVIC15, (Victoria: Henderson Publishing, 1915).
Victoria: not listed
- [S803] HENVIC17, (Victoria: Henderson Publishing, 1917), 550.
Victoria: Trio Studio 604 Yates
- [S804] HENVIC18, (Victoria: Henderson Publishing, 1918), 403.
Victoria: Trio Studio 604 Yates
- [S740] WRI18, (Vancouver, BC: Wrigley Directories, c1918), 503.
Victoria: Trio Studio commercial photographers 604 Yates street
- [S738] WRI19, (Vancouver, BC: Wrigley Directories, c1919), 1159.
Victoria: Trio Photograph & Supply Co E O A Crocker prop commercial photographers 604 Yates
- [S805] HENVIC20, (Victoria: Henderson Publishing, 1920), 502.
Victoria: Trio Photo Co (O C Walls) top flr 604 Yates
- [S739] WRI20, (Vancouver, BC: Wrigley Directories, c1920), 1037.
Victoria: Trio Photograph & Supply Co E O A Crocker prop 604 Yates
- [S806] HENVIC21, (Victoria: Henderson Publishing, 1921), 559.
Victoria: Trio Photo Co (O C Walls) top flr 604 Yates
- [S741] WRI21, (Vancouver, BC: Wrigley Directories, c1921), 1102.
Victoria: Trio Photograph & Supply Co E O A Crocker prop 604 Yates
- [S742] WRI22, (Vancouver, BC: Wrigley Directories, c1922), 1123.
Victoria: Trio Photograph & Supply Co E O A Crocker prop 604 Yates
- [S809] WRI23, (Vancouver: Wrigley Directories, 1923), 1807.
Victoria: Trio Photo Co O C Walls prop photogs 604 Yates
- [S757] WRI24, (Vancouver: Wrigley Directories, 1924), 1340.
Victoria: Trio Photo Co (O C Walls) 604 Yates
- [S758] WRI25, (Vancouver: Wrigley Directories, 1925), 1423.
Victoria: Trio Photo Co (O C Walls) 604 Yates
- [S763] WRI30, (Vancouver: Wrigley Directories, 1930), 1883.
Victoria: Trio Photograph & Supply Co E W A Crocker mgr 604 Yates
- [S769] SUN35, (Vancouver: Sun Directories, 1935), 1908.
Victoria: Trio Photographers (E W A Crocker) 604 Yates
- [S774] SUN40, (Vancouver: Sun Directories, 1940), 1864.
Victoria: Trio Photographers (E W A Crocker) 604 Yates
- [S779] SUN45, (Vancouver: Sun Directories, 1945), 2024.
Victoria: Trio (E Crocker) photog 604 Yates
- [S714] SUN46, (Vancouver: Sun Directories, 1946), 2162.
Victoria: Trio (E Crocker) photog 604 Yates
- [S715] SUN47, (Vancouver: Sun Directories, 1947).
Victoria: not listed
- [S521] University of Victoria, Faculty of Fine Arts (1993), (Victoria, B.C.: Faculty of Fine Arts, University of Victoria, April 1993).
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