This series consists of correspondence received by Byerly, and relates to family affairs, historical and genealogical research, as well as to books he authored.

These records are arranged chronologically by date.

This series consists of historical records compiled by Byerly during his research, as well as documents and ephemera he collected or saved. Included are biographies and genealogies of local people, historical information relating to churches, local towns such as Fergus and Berlin (Kitchener), Mennonites, Robbie Burns' ancestors, as well as miscellaneous articles and documents. Also included are a large quantity of research notes left by Byerly. The records consist of notes, correspondence, maps, ephemera, copied material, newspaper clippings, and notebooks.

These records are arranged by subject.

This series consists of five volumes collectively entitled The Annals of Guelph compiled by Hugh Douglass that relate to a variety of topics on the history of Guelph.

These volumes cover overlapping time periods. They are not indexed.

Series consists of financial records including expenses and profits for various fundraising activities and events organized by the chapter. These events include the harvest ball, tours of home and gardens and their annual penny sale. Series also contains newspaper clippings related to IODE events and Tour of Homes pamphlets. These records were created and maintained by the IODE, Mayor Robert Mutrie Chapter to administer their finances and activities.

Records in this series are arranged chronologically by year.

Series consists of files created or accumulated by Hugh Guthrie during his activities as a secretary and member of the Progressive Conservative Party of South Wellington. Included are files related to various elections, leadership and nominating conventions, annual meetings, and one file of the National Conservative Secretary.

Series consists of minutes of general meetings and executive meetings created by the IODE, Major Robert Mutrie Chapter. Included is a document describing the IODE's 50th Anniversary Convention in 1970. These records document the decisions and activities of the chapter.

This series consists of records related to the general administration of the Guelph Horticultural Society and its programs. Included are records related to membership, annual events, and the Society's constitution and by-laws. Also included are records generated during the course of the administration of the Junior Gardeners' program, civic planting, as well as general tree planting activities.

Records consist of junior program and competition announcements, junior contest requirements, names of program participants, prize lists, membership records, bylaws, together with related notes correspondence, and reports.

These records are arranged by subject.

Series consists of vertical files collected by Verne McIlwraith. Included in this series are newspaper clippings, historical research, reports and biographies related to the history, places and people of Guelph, Wellington County and surrounding areas. These records document the wide range of professional and personal interests of Verne McIlwraith.

These records are arranged alphabetically by subject.

Series consists of City of Guelph by-laws accumulated by Hugh Guthrie during the course of his activities as a partner in the law firm of Hungerford, Guthrie, and Berry. Included is a copy of Harrison's Municipal Manual and consolidated by-Laws for the City of Guelph. These records document Hugh Guthrie's interests and practice in law.

Series consists of records collected and created by Verne McIlwraith regarding the City of Guelph. Included in this series are reports, statistics, correspondence, research and newspaper clippings regarding City of Guelph Council activities, city programs, plans and budgets. These records document the professional and personal interests of Verne McIlwraith in the local government and politics.

These record are arranged by subject.