Census boundary evidence
Coffin Island — 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
- QC159003_1911
- Source boundary identifier
- QC159003
- Census vintage
- 1911
- Source label
- Coffin Island
- Province code
- QC
- District label
- Gaspé
- Level
- csd
- Representation class
- E93_Presence
Census continuity group: Coffin Island
TCP UID: QC159003
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.
- Coffin Island — 1911 · 1911_V1T1, row 6038 unique_contextual_name_candidate
- Coffin Island — 1911 · 1911_V1T2, row 5987 unique_contextual_name_candidate
- Coffin Island — 1911 · 1911_V2T2, row 2626 unique_contextual_name_candidate
- Coffin Island — 1911 · 1911_V2T7, row 2625 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 |
|---|---|---|---|---|---|
| Grande Entrée · 1901 | 1901 → 1911 | 12154690.012729116 | 0.9999998050799588 | 0.9999998121879652 | APPROXIMATELY_EQUAL_EXTENTHistorical succession verified: False |
| Havre aux Maisons · 1901 | 1901 → 1911 | 0.022009091375139178 | 1.082284267022321e-09 | 1.8107485438557226e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
| Wolfe, Bryon Islands, Grosse Ile & Bird Rocks · 1901 | 1901 → 1911 | 0.010327143496094485 | 1.89042284516823e-10 | 8.49642528580939e-10 | PARTIAL_OVERLAPHistorical succession verified: False |
| Grosse Ile, Wolfe Island, Grande Entrée, Byron, etc. · 1921 | 1911 → 1921 | 12154690.23002649 | 0.9999998300656183 | 0.18200155435199192 | EARLIER_WITHIN_LATERHistorical succession verified: False |
| Hâvre aux Maisons · 1921 | 1911 → 1921 | 0.021774275203711113 | 1.791429570925862e-09 | 7.755696675913172e-10 | PARTIAL_OVERLAPHistorical succession verified: False |
Continuity assessments
- Grande Entrée (1901) → Coffin Island (1911): name_change_requires_review