Census boundary evidence
Thorold, Town—Ville — 1881 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
- ON142009_1881
- Source boundary identifier
- ON142009
- Census vintage
- 1881
- Source label
- Thorold, Town—Ville
- Province code
- ON
- District label
- Welland
- Level
- csd
- Representation class
- E93_Presence
Census continuity group: Thorold, Town—Ville
TCP UID: ON142009
Census source records
No source row has a supported or candidate endpoint here in the current assessment. This does not mean the population was zero.
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.
| Other census representation | Years (earlier → later) | Overlap (m²) | Fraction of earlier area | Fraction of later area | Evidence |
|---|---|---|---|---|---|
| Thorold · 1871 | 1871 → 1881 | 0.011761576298284662 | 1.1234995586573886e-10 | 3.2092243385739817e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
| Thorold, Village · 1871 | 1871 → 1881 | 3664928.032196957 | 0.9999999782725112 | 0.9999999950486113 | APPROXIMATELY_EQUAL_EXTENTHistorical succession verified: False |
| Stamford · 1871 | 1871 → 1881 | 0.006384916124425694 | 6.667584715817232e-11 | 1.7421668411273074e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
| Grantham · 1891 | 1881 → 1891 | 0.0005888992060784588 | 1.6068506611562891e-10 | 6.8153877441008334e-12 | PARTIAL_OVERLAPHistorical succession verified: False |
| Stamford · 1891 | 1881 → 1891 | 0.0004170898405459374 | 1.1380573774343316e-10 | 4.327622954993765e-12 | PARTIAL_OVERLAPHistorical succession verified: False |
| Thorold · 1891 | 1881 → 1891 | 2468375.8861561595 | 0.6735127817652102 | 0.022611783785260433 | PARTIAL_OVERLAPHistorical succession verified: False |
| Thorold, Town—Ville · 1891 | 1881 → 1891 | 1196552.1631812882 | 0.3264872179602978 | 0.4857535379322485 | PARTIAL_OVERLAPHistorical succession verified: False |
Continuity assessments
- Thorold, Village (1871) → Thorold, Town—Ville (1881): name_change_requires_review
Individual records from the 1881 census
The individual census transcription is a separate dataset. Existing person citation anchors and the published geographic grouping are preserved. These records are not population totals derived from the rebuilt aggregate tables.