Census boundary evidence
Visitation (Ile Dupas) — 1911 census geography (QC)
This page identifies a census boundary representation. Source-table records below retain their own reporting-unit identity and geographic qualifications.
- Map snapshot identifier
- QC147012_1911
- Source boundary identifier
- QC147012
- Census vintage
- 1911
- Source label
- Visitation (Ile Dupas)
- Province code
- QC
- District label
- Berthier
- Level
- csd
- Representation class
- E93_Presence
Census continuity group: Visitation (Ile Dupas)
TCP UID: QC147012
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.
- Visitation (Ile Dupas) — 1911 · 1911_V1T1, row 5746 unique_contextual_name_candidate
- Visitation (Ile Dupas) — 1911 · 1911_V1T2, row 5695 unique_contextual_name_candidate
- Visitation (Ile Dupas) — 1911 · 1911_V2T2, row 2334 unique_contextual_name_candidate
- Visitation (Ile Dupas) — 1911 · 1911_V2T7, row 2333 unique_contextual_name_candidate
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 |
|---|---|---|---|---|---|
| Visitation (Ile Dupas) · 1901 | 1901 → 1911 | 32440875.307480782 | 0.999999897240411 | 0.9999999080131786 | APPROXIMATELY_EQUAL_EXTENTHistorical succession verified: False |
| Ile Dupas (Visitation) · 1921 | 1911 → 1921 | 32440875.226185113 | 0.9999999055072147 | 0.9999998946421883 | APPROXIMATELY_EQUAL_EXTENTHistorical succession verified: False |
Continuity assessments
- Visitation (Ile Dupas) (1901) → Visitation (Ile Dupas) (1911): supported_spatial_name_continuity
- Visitation (Ile Dupas) (1911) → Ile Dupas (Visitation) (1921): name_change_requires_review