Census boundary evidence

Forts Henry and Frederick, Penitentiary and lunatic Asylum — 1861 census geography (ON)

This page identifies a census boundary representation. Source-table records below retain their own reporting-unit identity and geographic qualifications.

Map snapshot identifier

ON072016_1861

Source boundary identifier

ON072016

Census vintage

1861

Source label

Forts Henry and Frederick, Penitentiary and lunatic Asylum

Province code

ON

District label

Frontenac

Level

csd

Representation class

E93_Presence

Census continuity group: Forts Henry and Frederick, Penitentiary and lunatic Asylum

TCP UID: ON072016

Census source records

Each link states the assessment that connected the source row to this map. Name candidates remain candidates; no source statistic is silently assigned to the map.

• Forts Henry and Frederick, Penitentiary and Lunatic Asylum — 1861 · 1861_V1T1, row 737 source_identifier_and_context_agree
• Forts Henry and Frederick, Penitentiary and Lunatic Asylum — 1861 · 1861_V1T5, row 737 source_identifier_and_context_agree

Boundary intersections across censuses

These are computed polygon intersections in the equal-area CRS ESRI:102001. Fractions describe the area of the earlier and later polygons, respectively. They do not establish historical succession, and population has not been apportioned by area. All positive intersections are retained, including very small contributions.

Area separations

Download geographic, continuity and source-binding evidence