Research Guide: History


This research guide outlines archival resources that are relevant to studying the history of the former Lakeshore Psychiatric Hospital. Reference assistance is available—please contact me if you have any questions.

Years of Operation

January 21, 1890–September 1, 1979.

Known As

Mimico Branch Asylum (1889–1894)
Mimico Insane Asylum (1894–1911)
Mimico Hospital for the Insane (1911–1920)
Ontario Hospital, Mimico (1920–1934)
Ontario Hospital, New Toronto (1934–1964)
Lakeshore Psychiatric Hospital (1964–1979).

Also Known As

Mimico Asylum
New Toronto Asylum
Lakeshore Sanatorium.


Primary and secondary sources pertaining to the history of the hospital are located at the Archives for the History of Canadian Psychiatry and Mental Health Services, City of Toronto Archives, and at the Archives of Ontario.

Archival Resources

Archives for the History of Canadian Psychiatry and Mental Health Services
Address: 1001 Queen Street West, Toronto, Ontario, M6J 1H4 [map]
Contact: John P.M. Court, Archivist, John_Court@camh.net, 416-535-8501, ext. 2159
Hours: Monday to Friday, 9:00am–5:00pm, by appointment only.
Records: Sources pertaining to the asylum are contained within the Lakeshore Psychiatric Hospital fonds.
Note: Please contact the Archivist to book an appointment and discuss the nature of your research before making a visit.

City of Toronto Archives
Address: 255 Spadina Road, Toronto, Ontario, M5R 2V3 [map]
Contact: archives@toronto.ca, 416-397-5000
Hours: Monday to Friday, 9:00am–4:30pm
Fonds 2, Series 1143, Item 1799: the Lakeshore Psychiatric Hospital land use study
Fonds 39, File 244: Metro Toronto Property Review: Lakeshore Site, Etobicoke
Fonds 70, Series 330, File 340: Mimico, Ontario
Fonds 70, Series 330, File 417: Views of Mimico Asylum
Fonds 97, Series 597, File 7: New Toronto
Fonds 200, Series 725, File 1: Plans from Water Works reports
Fonds 213, Series 720, Subseries 1, File 29: Lakeshore Psychiatric Hospital land use study
Fonds 232, Series 773, File 67: Cemeteries research: Ontario Hospital Cemetery, Etobicoke
Fonds 232, Series 773, File 209: Finding aid for Pleasance Kaufman Crawford fonds: Centre for Addiction and Mental Health Archives
Fonds 272, Series 1259, File 23: The Lakeshore Psychiatric Hospital land use study executive summary
971.3541 ST8 2005: Structures: Bishop Michael Power and Lakeshore Gounds.

Archives of Ontario
Address: 134 Ian Macdonald Boulevard, Toronto, Ontario, M7A 2C5 [map]
Contact: reference@ontario.ca, 1-800-668-9933 (toll free, Ontario only), 416-327-1600 or use the contact form to submit an inquiry.
Hours: Monday to Friday, 8:30am–5:00pm
Archival Record Series:
RG 10-298: Lakeshore Psychiatric Hospital patients’ clinical casebooks
RG 10-299: Lakeshore Psychiatric Hospital patient registers
RG 10-300: Records of the Medical Superintendent of the Lakeshore Psychiatric Hospital
RG 10-301: Records of the Bursar of the Lakeshore Psychiatric Hospital
Note: Some files are protected under the Freedom of Information and Protection of Privacy Act. Requests for access to records one hundred years old or less must be submitted in writing to the Information and Privacy Unit of the Archives of Ontario. Please refer to the web site of the Archives for more information.