Fonds consists of records relating to student life at Central Elgin Collegiate Institute, including yearbooks, programs and a student directory, some of which were once in the possession of former principal G.W. Trevithick.

Fonds is arranged into the following series:
-Yearbooks series, 1960-1984
-Student Directory series, 1964

Series consists of student attendance registers for:
-Balaclava Street Public School, 1924-1929
-Myrtle Street Public School, 1908-1919
-St. Thomas Collegiate Institute, 1900-1927

Series also contains miscellaneous records relating to Balaclava Street Public School, Elmdale Public School, Myrtle Street Public School and Scott Street Public School including newsletters, photographs, yearbooks and other materials collected from 1917 to 2011.

This series contains records concerning the involvement of the Sisters of St. Joseph in the London diocese in the field of education in St. Thomas, Ontario. While the records mention interactions with the Elgin County Roman Catholic Separate School Board and other schools in St. Thomas, the records in this series are all from or about St. Joseph’s High School. Material includes a feasibility study, yearbooks, news clippings, correspondence, photographs, pamphlets, and drama festival programs. The correspondence primarily concerns administration, funding, alumni events, and the Sisters who worked at the school. The major topics of the material are the Sisters’ employment, administrative concerns, the school’s drama department, and coordination of alumni events. There is also an annotated script for the play TUB by James W. Nichol, which the school performed in 1971.

Fonds contains records created or collected by the Fritz family relating to Alma College. Includes personal records belonging to Betty Smith, a student from 1941-1945, and Mary Louise Fritz, a student from 1954-1955. Also includes a photograph album and photographic negatives compiled by Bernice Fritz (nee Eilber), who was a student from 1928-1930. Fonds also contains miscellaneous documents and ephemera relating to Alma College, ca. 1932-2015.

This fonds comprises records created and/or maintained by Garnet Trevithick during his time as teacher and principal at St. Thomas Collegiate Institute, and during his personal life. Fonds is divided into the following series:
-Personal records series, 1919-1993.
-Photographs series, ca. 1932-1989.
-General History series, 1965-1988.
-Publications series, 1991.

Records relating to George Gray's life and career in St. Thomas. Fonds includes the following series:
-St. Thomas Collegiate Institute
-Parkside Collegiate Institute

In September of 1966 several former students and teachers held a meeting to discuss plans for a grand reunion of all students and teachers to be held in 1967 before the building was demolished. Early in 1967, a commemorative coin was commissioned to celebrate the event as well as raise additional funds for the reunion. The reunion was held on August 4-7, 1967.
The fonds consists of photographs and correspondence, publicity materials, a commemorative coin and its casting, and a rubber stamp.
The fonds is organized into the following series:

1. Photographs and correspondence, 1966-1968
2. Publicity, 1967
   This fonds would be of interest to researchers studying the architecture of old schools, the actual reunion of St. Thomas Collegiate Institute in 1967, and the lives of students and former teachers that were associated with this school. The pictures provide a pictorial of what times were like for the school over the years and also the attendees at the reunion.

Series consists of a Central Elgin Collegiate Institute student directory for the 1964-1965 academic year.

Series consists of Central Elgin Collegiate Institute yearbooks as well as an anthology of poetry and fiction written by students and programs for school events.