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The collection consists of six photograph albums containing over 1800 black and white photographs and more than 20 panoramas that document the construction of the Alexander Falls hydroelectric dam on the Nipigon River north of present-day Thunder Bay. Alexander Falls and the larger Cameron Falls generating station farther up the Nipigon River provided power for growing industrial activities in the twin cities of Port Arthur and Fort William. The dam was built between 1926 and 1931. In the first year construction of the railway line, works yards and coffer dam was begun. 1927 and 1928 saw work on the diversion channel, rockfill for the main dam and building of the sluiceway. Construction of the powerhouse took place in 1929-1930, including concrete work under difficult winter conditions where heated concrete forms were required. In 1930 installation of the generators began, with the first one coming on line in October. The third and final generator was switched over in March 1931. When completed Alexander Falls had a capacity of 54,000 hp (approx. 40 MW) and was connected to Port Arthur and Fort William by a 113 km (70 mile) transmission line. The photographs in the first five albums are arranged in chronological order, giving a clear sequential indication of the progress of the work. Photographs from these albums have mostly been annotated with an informative title and date. The photographs in the sixth album seem to show equipment and may have been used as an inventory for insurance purposes.

Fonds consists of textual, graphic, and digital material regarding Althea Douglas’ professional life, with a focus on her 7-year career with IMAX from 1984-1991. Records include: drafts and final copies of technical manuals; correspondence; invoices; internal memos and other publications; document translations; and technical manuals for elements developed out-of-house and incorporated into an IMAX theatre system. The computer files on 19 computer disks are AUTOCAD and Corel files for these manuals. There is also some material showing J. Creighton Douglas’ contributions to these projects, an interview between Althea Douglas and Curator Bryan Dewalt on 3 DVDs, three photographs (two of Althea and one of Creighton), and copies of both her and J. Creighton Douglas’ curricula vitae. Four ticket stubs were dissociated from the materials; they are believed to originate from France. Fonds is divided into 3 series with 30 files total; files within the series are generally arranged in chronological order.

Fonds consists of a two ring school notebook for Pendergast’s science (home economics) class at Loretto Abbey Catholic Secondary School. The notebook is filled with Ontario Department of Agriculture Women’s Institutes pamphlets and circulars, hand-written notes, newspaper clippings and classroom handouts. Clippings include recipes for such as, for example, scalloped onions and mint foam. Other topics covered include home plans, removing stains, and making clothes.

The fonds consists of a large collection of printed material relating to the St. Lawrence Deep Waterway/ St. Lawrence Seaway, 1894-1969. It also contains Canadian and American federal, provincial/state, regional and municipal descriptions, reports, and submissions. There is also material from associations including American pro and anti-St. Lawrence Seaway lobby groups. There are articles from newspapers, magazines and other publications about the Seaway and its costs/benefits. There is also Wright’s manuscript, galleys and reviews of his book “The St. Lawrence Deep Waterway: A Canadian Appraisal” (1935) as well as chronologies and Wright’s talks and submission about the Seaway. There is a small amount of Wright’s correspondence, mostly asking for information about the Seaway. Lastly, there are special newspaper sections about the Seaway as well as maps and oversize documents. The fonds is arranged in five series.

Fonds consists primarily of technical drawings and photographs related to the construction of locomotives by the Canadian Locomotive Company (CLC), the H.K. Porter Company, and the Davenport Locomotive Company. The Fonds has been arranged into four CLC series and two sous-fonds for Porter and Davenport company records.

The fonds consists of archives related to Canadian Pacific Steamships Limited’s promotion and operation of passenger, freight, and cruise lines. The records date from just before the creation of Canadian Pacific’s steamship services in 1883 to the late 1990s. The fonds includes records showing the management of the CPS and its precursors, but also reports from individual voyages of different vessels over time. There is a large series of records that appear to have been compiled together by Canadian Pacific historian George Musk. The fonds is arranged into five series: CPS-1) Business and Operations; CPS-2) Promotional Materials; CPS-3) Voyage Reports and Immigration Records; CPS-4) Musk Collection and CPS-5) Ledgers and Movement Books.

The fonds includes records related to Chester Beachell’s life and career, including audio recordings, textual records, three video cassettes, a scrapbook, circuit drawings, graphs, and a few photographs. All 94 audio cassettes appear to be copies of hydrophone or other recordings from the different projects that Beachell participated in from 1970 to 1974. There are also some recordings of talks given by Beachell or associates during roughly the same time period. The textual records cover most of his career and include press clippings, reprints or copies of articles he wrote, trade literature, other reference works, typed speeches, and two drafts of the memoir written in tribute to his wife, “My Life with Marg: Fifty Wonderful Years.” The scrapbook covers his early career working for radio station CJGX Yorkton, Saskatchewan. Videos include: a film produced by the NFB on Chester Beachell’s trip to New York to accept the John Grierson International Gold Medal presented to him by SMPTE; a closed-circuit telecast recording of a SMPTE Canadian Section meeting ca. 1963; and, a video compilation of NFB “archivals” or clips that must have been meaningful to Beachell. The materials have been arranged by the archivist into six series: BCH-1 – Early career; BCH-2 NFB project files; BCH-3 – Sound recordings; BCH-4 – Videos; BCH-5 – Publications and talks; and BCH-6 – Reference works and miscellaneous.

The collection consists of technical records of CPR's Mechanical Department created as they built and maintained the railway’s steam fleet. Before the drawing process began, the Chief Mechanical Engineer would determine the locomotive’s amount of power output and the size of cylinders. The driving wheels and boiler pressure had to be designed together with the wheel arrangement to meet the specified weight and clearance restrictions. Once this was determined the drawing was produced on paper, then traced on linen. All drawings were done by hand using a triangle and compass. When completed, the drawing would be signed off by the chief mechanical engineer.

Original drawings never left the CPR headquarters in Montreal, instead a negative of the drawing would be sent to the various shops throughout Canada. There they would print as many Vandyke copies of the drawing needed. When an original drawing was determined to be invalid due to its subject being cancelled or redesigned, due to new standards or because it was subject to damage, it was superseded by a new drawing. The original drawing would have an S placed on it with a reference to the new drawing number. It was also evident if a drawing was a replacement for a superseded original because of a letter at the end of a drawing’s number, for instance drawing E-58-L-0325-B.

In 1907, 350 drawings were required to create the engine and tender, by 1928 it took 1100 drawings. This fact, and the increased number of staff, indicates the growth and importance of the Mechanical Engineering Department.

The collection is comprised of three series. Series CPD-1 consists of 25,066 technical drawings of CP steam locomotives. Series CPD-2 is a card index with circa 15 metres of cards. The Department used index cards to organize and track the drawings, including, for example, indicating which drawings had been superseded. Series CPD-3 consists of 27 booklets, a partial set of drawing lists issued for specific locomotive classes. CPR engineering and car department drawings are not included in the collection.

The fonds includes a memoir, scrapbooks, trade literature, photographs, slides showing Telidon displays, newspaper clippings, posters, correspondence and other records that reflect Carlilse’s university career and work at IBM, Datacrown, and Infomart. The records bear witness to the technological developments and commercial pressures that shaped the early years of the computing, data processing, and videotex industries in Canada.

Fonds consists of material relating to D.B. Emmons’ work as a dairy research scientist at the Canada Department of Agriculture from 1958 to 1996. Copies of Emmons’ articles, publications and reports, either written alone or with colleagues, on basic research regarding milk, butter and cheese and on improvements on the production of these dairy products. Emmons also worked on larger questions such as multi-component milk pricing and formulas for predicting cheese yields. Emmons’ professional correspondence 1953-1986 includes internal memos and correspondence with external researchers, with private and public research institutes and international bodies. The Workbook series contains 153 scientific lab books related to standardized analysis of milk and cheese as well as new research on these products. The Photograph and Slide series contains individual and group photos of Emmons’ colleagues at the Department of Agriculture. The slides relate to Emmons’ travels to conferences and tours of dairy facilities in North America, Europe and Asia. There are also slides for his presentations, as well as figures and tables that were used in his reports and publications.

Fonds primarily consists of material on the history of the Dominion Observatory, and technical and graphic material covering its 15-inch telescope and lens. The fonds is arranged into two series: DOC-1) Textual records; and DOC-2) Photographs. Series DOC-1 consists of 12 files of textual records on the history of the Dominion Observatory, including original correspondence, programming, and research documents created by Observatory staff, as well as subject research files created by Museum staff. The files often contain a few photographs that relate directly to the textual material in their files. Series DOC-2 consists of photographs, slides and negatives illustrating the construction of the Dominion Observatory, the 15-inch telescope, staff, interior and exterior images of the building. The lantern slides in the series seem to have been used for public lectures and educational programs. There are also approximately 300 black and white 9.5 x 11.5 cm photographic prints that may be observational data.

The fonds includes several government records that Angus would have needed to operate his boat as a leisure vessel. There are four Season Let Passes issued by the Department of Transport over the period 1939 to 1943 for the Sainte-Anne-de-Bellevue Canal Lock. The other document is a Vessel License issued by the Department of Transport in 1964. The records are arranged in chronological order.

Fonds consists of Parkhill’s curriculum vitae and copies of his articles and presentations on computer communication, Telidon and videotext 1978-1985. Parkhill’s files on informatics while he was Assistant Deputy Minister (Research) with the federal Department of Communications from 1974 until his retirement in 1984 which includes published and unpublished reports. Parkhill’s correspondence and 91 audio tapes of recorded interviews with leaders in the videotext and teletext fields in Europe, North America and Far East that led to his manuscript “The Beginning of a Beginning” (1985). A large series on informatics including correspondence, articles, published and unpublished reports and studies covering videotex, teletext and Telidon 1972-1988. Subject files covering computerization and office communications systems (OCS). Also some photos of Parkhill receiving awards and his retirement.

The item is a scrapbook containing documents and identification ribbons from the First Canadian Television Clinic, presented by the Academy of Radio Arts. The documents in the scrapbook include the brochure for the event, an open invitation letter, the agenda, and biographies on some of the speakers. The three ribbons are for identifying whether a person was event staff, a guest or a member of the press.

Fonds consists of biographical material on Davies; his personal correspondence, scientific articles, notes, reports and talks; his journals and trip notebooks 1928-1980 and college notebooks. Articles, scientific notebooks and reports by Davies and others relating to the Byrd Antarctic Expedition of 1928-1930 plus material on American Antarctic research in the 1970s. Davies’ articles, notebooks and reports on the Second Polar Year Expedition to Chesterfield Inlet NWT of 1932-1933. Davies’ correspondence, notebooks and procedures relating to his work for the Carnegie Institution 1931-1940, including his work as as director of the observatory in Huancayo, Peru. Articles, reports, publications by Davies and others relating to the Defence Research Telecommunications Establishment 1943-1970 relating to research in the Arctic, radio communication, the Canadian research satellites Alouette I (launched 1962) and Alouette II (launched 1965). Reference material related to Davies’ fields of interest. Individual photos and albums relating to Davies, the Byrd Antarctic Expedition, the Second International Polar Year expedition to Chesterfield Inlet, social activities at DRTE etc. There is also a series of records that Davies compiled while planning to write his history of DRTE, as well as a series consisting of 4 objects. The fonds is arranged in 10 series.

The fonds reflects Lehmann’s research on Canadian railway development and its sources of locomotives. He conducted research on companies that built locomotives in Halifax, Saint John, Montreal, Toronto, and Hamilton, but there is also an entire series of research files on the succession of companies in Kingston, including particularly the Canadian Locomotive Company. The fonds is arranged into the following nine series: LEH-1) Articles and Talks (1965-1994); LEH-2) Canadian Locomotive Builders Project (1969-1994) on his book project; LEH-3) Canadian Locomotive Builders (1824-1990) LEH-4) Canadian Railway Shops (1859-1900); LEH-5) Canadian Locomotive Co. (1845-1991); LEH-6) Miscellaneous reference files (1858-1985); LEH-7) Locomotives and Railways, Articles and Books (1876-2000); LEH-8) Photos and Slides (1852-1987); et LEH-9) Additional Material (1884-1999). The last series, LEH-9, includes all the material transferred in the 2023 accrual.

Fonds consists of G.L. Nelms’: correspondence and letters of recommendation 1966-1993; scientific data from the Alouette and Isis satellites 1956-1973, 1981-1988; copies of DND budget files and its research and development policy 1977, 1990-1991; files relating to associations such as the Aerospace Industries Association of Canada and the Institute for Space and Terrestrial Science; files on the history and significance of the Alouette satellites; research and editorial files for the book “No Day Long Enough: Canadian Science in World War II” (1997), the television film “Space Pioneers of Canada” (1981-88) and the film “Calculated Risks: Canadian Science at War 1939-45” (1995-96); reference material relating to radar, defence procurement, defence strategy and management and defence research establishments across Canada; photographs of the building and launching of Alouette I; photographs of Nelms and other designers and builders of Canadian satellites; and photos of the Defence Research Establishment Ottawa (DREO) at Shirley’s Bay. The fonds is arranged into seven series: NEL-1 Personal; NEL-2 Alouette and ISIS Satellites; NEL-3 Defence Research Establishment Ottawa/ Department of National Defence; NEL-4 Associations; NEL-5 History Series; NEL-6 Reference Files; and NEL-7 Photographs.

Fonds consists of documents, technical drawings, photographs, clippings, reprinted articles on Massey Ferguson or Massey Harris, a badge, a pin, a business card, and some drafting tools. There are also some internal newsletters and publications from Massey-Harris in Australia. The archives show that Windsor seems to have been involved in the design of model 37 combine and that he worked in Canada, Australia, and France.

Fonds consists of the professional papers of Jacques C. Beauchamp, a bridge engineer and later head of Structures for Public Works Canada. Fonds also includes Beauchamp’s articles and reports on bridge design, construction and appraisal plus articles and reports produced by his staff. There are files on the creation of the federal Place du Portage complex in Gatineau, Québec, 1958-1975, and federal bridges crossing the Ottawa River.

There are numerous files on the role of Public Works Canada in overseeing the feasibility and the bidding competition for a crossing of the Northumberland Strait between Prince Edward Island and New Brunswick which resulted in the Confederation Bridge. Included is historical material from previous designs and the role of the federal government in building a crossing as well as feasibility studies by consultants and the first round of technical proposals for building a crossing.

Fonds also contains Beauchamp’s subject files on bridge types (cable-stayed, concrete, box girder etc.). Other subject files cover construction standards, environmental assessments, seismic events etc. There are prints and slides of interprovincial bridges, the construction of Olympic facilities in Calgary and specific bridge types.

The material is organized into six series: Personal; Public Works Canada; Northumberland Crossing Project; Bridge Subject Files; General Subject Files; and Photographs and Slides.

The fonds consists of a file of correspondence and documents from and to J.C.R. Punchard as he worked with others to establish the National Museum of Science and Technology in 1967. Punchard was part of the Support Committee that began its advocacy work in 1964. There is also a file with his obituary, featured in the March 11, 1982 issue of the Ottawa Citizen.