Fonds consists of sketches, notebooks, paintings and articles accumulated by G.H. Richardson. It includes copies of Richardson's newspaper column, "Nature Notes" his collections of paintings, sketches, and art reference plates.

The series consists of records kept by the General Superior office for use in the administration of the community in London, Ontario. Material is primarily from the period during which Sister Margo Ritchie held the office, but it also contains material from when Sister Mary Diesboug and Sister Valerie Van Cauwenburghe held the position. This series contains twelve subseries relating to the operations, missions, and activities of the congregation. This includes the Medaille Retreat House, Josephs’ House, the Detox Centre, My Sister’s Place, St. Joseph’s Hospitality Centre, Elizabeth Place, St. Stephen’s House, the Southdown Project, Holy Rosary House in Windsor, the Goderich convent, and the Sisters of St. Joseph in Alberta. There is also material related to the hospitals in London, Sarnia, and Chatham administered by the Sisters and the transfer of operation of said hospitals to the Chatham-Kent Health Alliance and St. Joseph’s Health Care Society. There is material related to the construction of a new residence, especially concerning the Leadership in Energy and Environmental Design (LEED) standards of the new building, and relocation of the Sisters from Mount St. Joseph to this new residence.

There is also material related to the various meetings of the congregation, from the more informal Community Days to the more formal Assemblies and Chapters. Chapters are formal congregational meetings where major decisions, such as amalgamation and leadership positions were voted on. There are voting records from the 2011 Special Chapter and the 2009 Oneness Project in this series. There are also reports from the Leadership Circle, Chapters, and committees within the congregation. There is also material from the Federation of the Sisters of St. Joseph of Canada, an organization made up of all the Congregations of the Sisters of St. Joseph in Canada. There is material from the Federation and the London congregation’s systemic justice efforts and the Sisters’ efforts towards concerning the Truth and Reconciliation Commission. There are various newsletters from the Federation and the London congregation. The series also includes administrative correspondence and speeches presented by the General Superior to the congregation.

In summary, the series contains letters, reports, speeches, minutes, voting records, newsletters, pamphlets, prayer books, agendas, meeting minutes, memorandums, postcards, photographs, correspondence, timelines and schedules, inventory lists, legal documents, meeting minutes, executive summaries, budget reports, reports, newspaper and magazine clippings, bursary reports, histories, bulletins, designs for stained glass windows, and property appraisals.

Collection contains a variety of maps, plans, and drawings pertaining to the Town and Township of Whitby. Maps have been physically arranged according to map type, including Street and Tourism, Physical, Political, Transit, Historical, and Architectural Drawings.

Fonds consists of minutes, financial records, membership books, newsletters, and tree committee papers created and accumulated by the Burlington Horticultural Society

The fonds consists of Stuart L. Thompson’s personal diaries in which he documents his daily life in the City of Toronto along with noting bird and mammal sightings. There are a number of special diaries documenting Thompson's various travels. The fonds also consists of bird sighting charts and of two items of Thompson’s correspondence. The fonds does not include two diaries documenting Thompson's overseas service during World War I.

Where specimens were collected, Thompson made a notation in his diary with a collection number. Several of the diaries have indexes of his collection at the back.

Fonds consists of A.P. Coleman’s geology field notes, maps, photographs, and manuscripts.

The fonds contains administrative records, minutes, correspondence, project notes and proposals, publications, news announcements, certificates and awards, maps, and photographs Grand Valley Trails Association.

The William (Bill) Mackasey fonds documents Mackasey’s various activities as a geologist and more specifically his interest in mining and the environment. Videotapes, reports, and studies relating to abandoned mines and tailings mostly focus on Northern Ontario but some also concern Western Canada and the United States. Workshops on Current Development on the Stability of Uranium, Elliot Lake (1993), documentation on rehabilitation of abandoned mines and waste management can also be found in the files.

Consisting of correspondence, minutes, memos, notes, maps and briefs, the files of the Lands for Life Round Tables not only document the mandate, the goal and process of these roundtables and their consultations but it also inform us on the different perspectives of the groups, and associations from different regions of Ontario who participated and submitted briefs and studies to the Lands for Life Round Tables. Consultations were held throughout Ontario and information exists for the meetings held in Northern Ontario: North Bay, Sturgeon Falls, Sudbury, Elliot Lake, Espanola, and Thunder Bay. Many groups, associations and industries submitted briefs. The forest industry, mining industry along with the tourism industry and indigenous communities, provincial parks as well as regional anglers & hunters and snowmobiling associations all presented their points of view and suggestions about the use of Crown Lands. A report on the Ancient Forest Ecology and Conservation of Lake Temagami is amongst the studies and reports presented. Also included are some original maps created for consultation with the public in general which illustrate what was suggested by the different groups for each region and the current situation at the time of the hearings and reports of the suggested land use.

Fonds consists of Father Riotte’s correspondence, papers, and photographs, as well as research notes for two books.

The Oiva W. Saarinen fonds attests to his research interests on the Finnish Communities in North America, as well as on the urban development of single-industry towns in Northern Ontario, and also to his documentary productions. It also informs us about Saarinen's involvement in different associations and organizations within the Finnish community of Canada. The fonds contains notes, articles, research papers and publications he produced in the course of his research activities, and documentation. Further to documenting the immigration of Finns to North America and Northern Ontario, and their role in the development of cities such as Thunder Bay and Sudbury, the studies, reports and photocopies of archival materials also cover the early settlements and economic activities of the different regions. For instance, in the sub-series “History of Finnish Settlement on Lake Panache,” lumbering, as well as environment aspects of the presence of the dam, land claims by Indigenous and their presence, are also addressed and documented. In the sub-series “Finns in the Sudbury Area,” the annotated maps, the assessment rolls, and lists from Vernon's, or reports on mining in the region, inform us about the Finnish community and their activities in the region. The short stories and testimonies, and recollections of members of the Finnish community in Sudbury, also provide significant primary sources of information.

The papers and publications are divided in 3 Series: I: Oiva Saarinen publications; Series II: Books and other materials and Series III: Books and other materials on Economic and Urban Development. Series II is divided into 9 Sub-series:
Sub-series A: Books and other materials on Finland;
Sub-series B: Finnish-American Literature;
Sub-series C: Vapaus, Foc, and other left-wing Literature;
Sub-series D: History of Finnish Settlement on Lake Panache and materials related to Indian Land Claims;
Sub-series E: Finnish Religious Groupings in North America;
Sub-series F: North American Finnish Literature and Writers;
Sub-series G: Finns in Canada and in the United States (excluding Ontario);
Sub-series H: Finnish-Canadian Ontario Material (excluding Sudbury);
Sub-series I: Finns in the Sudbury Area.

The fonds attests to Charles Kenneth (C.K.) Leith’s activities as a surveyor in Northern Ontario, while in the employ of the Ontario government. The records contain maps and reports of different regions of Canada that were surveyed by Leith, as well as around the American side of Lake Superior. The reports and drafts of mine claim sites, and his correspondence, are informative of the development of the Cobalt region in terms of mining. Many of the printed maps or originals are annotated, and document some of the geological surveys done by C.K. Leith. Some of the correspondence deals with investments or claims made by Leith and his colleagues. The fonds also contains drafts and official reports written by Leith, which appear in the Annual Reports of the Ontario Mining Ministry.

The records of the fonds include materials that are related to the Lily Creek development in Sudbury, and consist of reports, notes and newspaper clippings.

Fonds documents Craig Campbell’s interest and involvement in the conservation of Canada’s natural heritage. Textual records consist of correspondence related to his research and conservation efforts; correspondence related to his work for CARCS; correspondence with conservation agencies, academics and scientists from various institutions across North America; published and unpublished manuscripts written by Campbell, research materials, field notes, reports, newspaper clippings and photocopies of publications with annotations. Graphic records include photographs, slides, x-rays, and drawings of amphibians, reptiles and observation sites. Cartographic records include diagrams and maps. The fonds is arranged in 5 series as follows: Timber Rattlesnake Records, Hybrid Salamander Records, Salamander Habitat and Breeding Records, Turtle Records, and Natural Heritage Conservation Records.

Fonds consists of 10 notebooks which capture Jack Oughton’s personal and professional life during his time as a student at the Univeristy of Toronto and his days as an employee at the Royal Ontario Museum of Zoology. The diaries describe his daily life along with observations about nature (birds, insects, plants) around Southern Ontario. Oughton’s diaries document his work with J. R. Dymond at the Royal Ontario Museum of Zoology and his participation with the Brodie Club and other naturalist clubs. A number of diaries document trips made to the Arctic, Baffin Island, Lake Nipissing, the Bay of Quinte and Trent Valley.

The fonds consists of two bulb and plant propagation record books spanning the years 1968-1983.

Item is an edition of "Boys' Business: A Boy's Adventures with Birds and Beasts," 2015. The original manuscript was written by Charles Haultain and his mother, c1910. It was discovered, and published, by his daughter, Barbara in 2015. The book contains the musings of a young boy while hunting, fishing, and enjoying the life of a young naturalist in the area surround Port Hope, and Hope Township. It also includes sketches and watercolours created by Charles Haultain.

This collection consists of hand-written notes; notebooks; programmes; plant lists; plant records; maps; drawings; measurements; tour scripts; photographs; slides; postcards; and photographs.

This collection consists of bulletins; newsletters; yearbooks; correspondence; articles; pamphlets; registries; annual reports; member lists; judge list; officer list; newspaper clippings; constitutions and by-laws; application forms; board of directors documents; and a flower show programme.