This series contains a variety of petitions expressing concerns of councillors and inhabitants of the Brock District. This series is divided into the following subseries:

A) Council
B) Finance
C) Public Improvements
D) Common Schools
E) Miscellaneous

The first subseries includes petitions from Council to the Legislature and provide an excellent source of information on a variety of topics including taxation and the separation of certain portions of land from the District of Brock. Of particular interest is an agricultural petition which expressed that the concerns of the rural farmer seem secondary to the Government’s concerns for the merchants of Ontario.

The second subseries includes petitions from individuals relating to financial disputes, such as assessment, taxation, and payment for work completed.

The third subseries contains petitions referred to the Committee on Public Improvements and typically contains the name of an individual or freeholder, or a list of names of individuals requesting that road or bridge be built, or compensation made for land taken.

The fourth subseries contains petitions to the Committee of Common Schools and indicate the progression from the need expressed for the establishment of a new school section in 1845, through to the levying of taxes for teachers' salaries and the building of schools in 1847-1849.

The last subseries of petitions includes a number of concerns such as a request for an Inn license, the unfairness of the 1847 election, the moral and religious character of the works in the prison library, and the improper taxation for a dog which did not exist.

This series consists of the administrative and legislative records of the District of Brock which replaced the administrative powers of the magistrates of the Quarter Sessions. The series is divided into the following subseries:
A) Minutes
B) By-laws
C) Finance
C1 – Treasurer
C2 – Auditor
D) Warden
E) Clerk
F) Council

The first subseries consists of the Minutes of the District Council, which are divided into three volumes. A part of this series includes motions and rough minutes.

The second subseries contains the hand-written by-laws of the District Council, and loose drafts and copies of by-laws.

The third subseries includes letters, assessment lists and statements that provide an excellent picture of the raising and expenditure of monies as well as provides information on some of the County’s earliest settlers. This subseries is divided into two sub-subseries: Treasurer and Auditor. The Treasurer's (H.C. Barwick, 1842-1853) records consist of general correspondence, assessment lists, and a variety of financial statements and accounts. Correspondence includes requests from individuals for reassessment of their property taxes whereas Assessment records include lists of lands returned by the assessors of several townships in the District of Brock. These lists include the name of the Township and the description of the portion of each lot, concession and acreage. In addition, there are eleven bound volumes which give assessment information from all of the townships except Burford. Financial statements cover a number of areas such as receipts and disbursements of taxes arising out of Wild Land taxes, statements of the County House and Gaol Fund and statements related to Public Improvements and the School Fund. Accounts include general accounts for services provided as well as a School monies account ledger. The Auditors records consist of audited accounts, statements, reports, and applications for the office of the Auditor.

The fourth subseries contains the Warden’s files, 1842-1849. The first Warden of the new District Council appointed by the Governor was Peter Boyle de Blaquire, the standing local member of the Provincial legislative council.

The fifth subseries consists of the Clerk’s files. It contains miscellaneous correspondence and copies of proceedings of public meetings. The appointed clerk of the District of Brock was William Lapenotiere, a son of a post captain at the battle of Trafalgar.

The last subseries, Council files, presents a detailed account of the structure of the District Council; such topics include building of roads and bridges and the provision of education.

By-laws cover a great variety of issues and concerns. There are By-laws to formalize agreements with other institutions, appoint municipal officials, regulate tax collection, construct sidewalks and roadways, license local establishments, provide for holding elections, establish rates for water and other applicable utilities, and construct City facilities. While most By-laws pass after three readings by council, some early by-laws affecting the “future position” of the municipality required the electoral approval by ratepayers according to the Municipal Act. These by-laws would generally include debenture by-laws for the borrowing of funds on credit, but would also include by-laws for annexation or separation, a re-division
of wards, construction of street railways, local assessment and improvement to name a few.

Interspersed with the earliest Fort William By-laws, there are also sundry by-laws generated by the Municipality of Neebing (1890-1894).

Series consists of the Council Minutes for the Town of Sudbury.

This series consists of meeting minutes for the Municipal Council for the Town and City of Fort William. Comprehensive indexes compiled by staff at the City Clerk’s office provide access to the various issues discussed at council meetings.

Series consists of the by-laws of the Town of Sudbury.

Series consists of the collector's rolls of the Town of Sudbury. The collector's rolls contain the same information as the assessment rolls with the addition of the date of payment for the taxes. They were created by the town clerk from the assessment rolls and then given to the collector who would be entrusted to acquire the taxes from the individuals or businesses and record the date and amount paid in the rolls. The rolls would then be given to the town treasurer.

Series consists of photographs for the Town of Sudbury.

Series consists of the voters' lists for the Town of Sudbury.

This series consists of index books for the Fort William Council. Each index is filed by year and contains an alphabetic order of topics with references to the page number where the topic was recorded in the Council Minute Book.