Series consists of aerial photographs of the City of Thunder Bay. Included are aerial views of the former City of Fort William from 1949, 1955, 1959, 1962, 1968 and 1969; aerial views of the former City of Port Arthur from 1959 and 1969; and aerial views of the amalgamated City of Thunder Bay from 1974, 1976, 1981, 1983, 1987, 1991 and 1996. Also included in this series are aerial photographs of the Port Arthur urban renewal area from 1968.

The Office of the City Clerk reports to the City Manager and is responsible for maintaining all
legislative and administrative requirements necessary for the effective functioning of the City.
The primary responsibilities of the Office of the City Clerk include managing the registration
of vital statistics information, preparing agendas for City Council and providing advice to
Council regarding the policies and operations followed by the City. Another major
responsibility of the Office of the City Clerk is to oversee the assessment of property tax.
Assessment Rolls are compiled each year by the Municipal Property Assessment Corporation
(MPAC), the provincial government body responsible for the assessment of property value for
properties in all municipalities across Ontario. The City Clerk directs the certification and
amendment of Assessment Rolls prepared by MPAC each year within the City of Thunder
Bay. The information recorded in the Assessment Rolls is used by the City to calculate
municipal property taxes.

Series consists of Assessments Rolls covering residential, commercial and government owned
properties. Assessment Rolls include the following information: parcel number, name and
mailing address, religion, location and description of the property being assessed, school zone
including school support, tax class, total valuation, exempt distribution and taxable
distribution. Earlier Assessment Rolls from this series may include additional information
such as; marital status, occupation and year of birth. Recent Assessment Rolls also specify
whether or not there were any changes in property ownership for the years that the Assessment
Roll covers.

The Assessment Rolls are arranged by ward and subdivision. Assessment Rolls produced
between 1970 and 1979, are divided into wards for Fort William, Port Arthur, McIntyre
(Shuniah) and Neebing. Later Assessment Rolls, from 1980 onward, are divided into seven
different wards; McIntyre, Neebing, Current River, Northwood, McKellar, Red River and
Westfort.

Assessment Rolls can also be navigated by municipal address and name for the years 1976 –

1995. See Related Series: Series 41: Street Indexes to Assessment Rolls; and Series 42: Name
      Indexes to Assessment Rolls.

Also included in this series are Supplementary Assessment Rolls and Total Current Value
Rolls. Supplementary Assessment Rolls detail changes in ownership and provide information
on proportionate assessments for new property owners. Total Current Value Rolls include
statistical information on the total assessed values for properties which have been divided into
the following categories; residential (includes English and French separate school and public
school), commercial, office building, industrial, exempt, parking lot and multi-residential.