Subseries consists of correspondence to Clare Harrington by various family members, between 1883 and 1966, including a letter from her Grandpa, Grandma and Aunt Eva Dawson, written from Paris in 1883; letters from Bernard James Harrington, 1884, between 1894 and 1898, 1902, 1903; Rankine Dawson, 1889; Anna Dawson Harrington, 1893, 1896, 1901, 1902, 1904, 1905, 1907; Lois Sybil Harrington, 1898; Conrad Dawson Harrington, 1903; Ruth Mina Harrington, 1906; Bernard Gibb Harrington, 1907, 1952; Jessie Soults, 1918; William Bell Dawson, 1935, 1938; Walter Vaughan, 1917; W. Shepherd, 1917; Kate Alexander, 1917; Edward P. Featherstonhaugh, 1917; Mary Sutherland, 1917; Lois McMurtry, 1917; Sarah B. Grier, 1917; Ethel Hurlbatt, 1917; Sophie Campbell, 1917; Rachel Skelton, 1917; Grace Fairley, 1917; Ethel H. Porter, 1917; E.V. Hancock, 1917; Phyllis Davis, 1952 and several undated letters from Rankine Dawson; Anna Dawson Harrington; Muriel Galt; Alice J. Turnham, with an attached list of material related to George M. Dawson, 1952, and Conrad Featherstonhaugh Harrington, 1966. It also includes photographs of Cristall Margaret Dawson, 1925 and her correspondence, 1939 and 1964; 4 letters to Conrad Harrington, written by his mother, Anna Dawson Harrington, between 1894 and 1914; 4 letters to Bernard Gibb Harrington, written by Lois Sybil Harrington in 1900; 2 newspaper clippings, 1923 and 1933 and 1 undated clipping about Harrington Air Service; 6 letters written to Eric Harrington from John William Dawson, 1883; Rankine Dawson, 1884; Bernard James Harrington, 1885; Ruth Mina Harrington, 1894 and Louisa G.F. Molson, 1894; numerous letters to William Harrington, between 1899 and 1916 and in 1927 from Anna Dawson Harrington, 1899, 1903, 1905, 1907, 1908, 1909, 1910, 1915, 1916; Bernard James Harrington, 1903, 1906; R.H. Coats, 1927 and 10 undated letters from Anna Dawson Harrington. It also includes letters from Clare Harrington to Phyllis Davis, 1952; letters from Bernard James Harrington to Edith Harrington, 1888; 28 letters from Anna Dawson Harrington to Ruth Harrington, between 1894 and 1912; 1 letter from Bernard James Harrington to Ruth Harrington, 1906; 1 letter to Miss Gibb from Brooklyn (New York, N.Y.), 1883; miscellaneous letters written and received by members of the Dawson-Harrington families, between 1892 and 1910, e. g. from Grandpapa William Dawson addressed to children; from Anna Harrington addressed to her daughters; from Bernard James Harrington, Clare Harrington, Lois Harrington addressed to family; 2 letters from Charlotte Harrington to Mary Louisa Harrington, between 1872 and 1873; 6 unidentified letters, between 1861 and 1884 and photocopies of receipts, deeds of gift, notes, and correspondence related to the donation of archival materials to McGill University, given by the Dawson family, between 1908 and 1963.

This subseries consists of assorted clippings and extracts, housed individually or in groups in envelopes or folders.

This subseries contains materials related to the history of the Montreal Neurological Institute (MNI), the Neuro History Project, conferences and workshops held at the MNI, and publications on the history of the MNI that Feindel was writing.

This sub-series documents the Canadian Textile and Chemical Union (CTCU), which grew out of the Canadian Textile Council (CTC) founded by Madeleine Parent and Kent Rowley in 1952. The CTCU represented manufacturing and service workers and became affiliated with the Canadian Association of Industrial, Mechanical and Allied Workers (CAIMAW). In 1992 the CTCU merged with the Canadian Auto Workers (CAW) to become Local 40. However, there are no documents related to the merger in this sub-series. The CTCU was also a member of the national trade union center, founded by Parent and Rowley, the Confederation of Canadian Unions (CCU).
The sub-series consists of the CTCU's annual conventions, constitution and by-laws, and files relating to specific union disputes and agreements. There are related materials on the CTCU's union activities in the Artistic Woodwork Company Limited sub-series (C9) and the Puretex Knitting Limited sub-series (C10).

This subseries consists of assorted documents pertaining to the life and work of Roy States. When the Roy States collection was donated to Rare Books and Special Collections, many of the ephemeral materials were initially placed into individual envelopes or folders, were given individual identification codes, and were listed in the printed finding aid for the collection. In a later processing stage, the envelopes whose contents related most directly to States were assembled into a group and housed in a dedicated box. These reboxed materials now form subseries 02 of Series A. A particularly important biographical item in the subseries is the "Resumé of experience and activity" binder which States complied.

This subseries contains records related to J.W. McConnell’s philanthropic and fundraising efforts on behalf of higher education institutions, dating between 1931 and 1960.

Material in this subseries includes addresses, programs and other ephemera, correspondence, reports, commemorative awards, portraits, and mementos.

This subseries contains records related to J.W. McConnell’s involvement in the Commerical Trust Co., between roughly 1936 and 1972.

Material found in this subseries includes income tax and financial statements of trusts, memos and correspondence regarding taxation (interleaved with tax statements), ledgers, and minutes of the executives and minutes of the investment committee (from roughly 1939-1971).

This subseries consists of non-Canadian serials collected by Roy State during primarily the 1970s. The majority of the serials are produced by either Black or African groups and organizations. Also includes some periodicals from the Arab world. Some of the serials are issues of non-Black-produced periodicals, such as Time or History of the 20th century, that contain articles on Black history.

This subseries contains records related to J.W. McConnell’s fundraising efforts related to the First and Second World Wars, dating between 1917 and 1949.

Material in this subseries includes reports, an address, ephemera related to various campaigns, books, correspondence, and photographs.

This subseries contains records related to J.W. McConnell’s involvement in the Montreal Star, from between 1925 and 1971.

Material in this subseries includes federal and provincial income tax statements and annual statements, memos and correspondence regarding tax and editorial content (specifically political events and discourse such as the arrest of Mayor Camillien Houde in 1940 and the rise of the Co-operative Commonwealth Federation and F. R. Scott in Canadian politics), and minute books of the executive.