Census boundary evidence
Allright Island — 1871 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
- QC173003_1871
- Source boundary identifier
- QC173003
- Census vintage
- 1871
- Source label
- Allright Island
- Province code
- QC
- District label
- Isles de la Magdeleine
- Level
- csd
- Representation class
- E93_Presence
Census continuity group: Allright Island
TCP UID: QC173003
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.
- Allright Island — 1871 · 1871_V1T1, row 1307 source_identifier_and_context_agree
- Allright Island — 1871 · 1871_V3T23, row 1307 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.
| Other census representation | Years (earlier → later) | Overlap (m²) | Fraction of earlier area | Fraction of later area | Evidence |
|---|---|---|---|---|---|
| Magdalen Islands · 1861 | 1861 → 1871 | 28075202.136155244 | 0.11533955441635835 | 0.9999999999999996 | LATER_WITHIN_EARLIERHistorical succession verified: False |
| Hâvre aux Maisons · 1881 | 1871 → 1881 | 28075202.136155255 | 1.0 | 1.0 | APPROXIMATELY_EQUAL_EXTENTHistorical succession verified: False |
Continuity assessments
- Allright Island (1871) → Hâvre aux Maisons (1881): name_change_requires_review
People and biographical connections
These published connections come from the separate LINCS / Dictionary of Canadian Biography layer. A life event or overlapping lifespan does not establish residence at a census date. The association remains attached to this published page; it is not assigned to every revised census group.
| Name | Lifespan | Connection |
|---|---|---|
| Placide Vigneau | 1842–1926 | born here |