Census boundary evidence
Rock Island, Village — 1901 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
- QC195010_1901
- Source boundary identifier
- QC195010
- Census vintage
- 1901
- Source label
- Rock Island, Village
- Province code
- QC
- District label
- Stanstead
- Level
- csd
- Representation class
- E93_Presence
Census continuity group: Rock Island, Village
TCP UID: QC195010
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.
- Rock island, Village — 1901 · 1901_V1T7, row 2679 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 |
|---|---|---|---|---|---|
| Stanstead · 1891 | 1891 → 1901 | 2121347.718032519 | 0.006813961613281357 | 1.0 | LATER_WITHIN_EARLIERHistorical succession verified: False |
| Stanstead · 1911 | 1901 → 1911 | 0.02469157898416564 | 1.1639571756329641e-08 | 7.985572914130444e-11 | PARTIAL_OVERLAPHistorical succession verified: False |
| Beebe Plains vl · 1911 | 1901 → 1911 | 0.02910777247987857 | 1.3721358470583543e-08 | 3.4639708204790645e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
| Rock Island vl · 1911 | 1901 → 1911 | 2121347.549455722 | 0.9999999205331612 | 0.9999996865978358 | APPROXIMATELY_EQUAL_EXTENTHistorical succession verified: False |
| Stanstead Plain vl · 1911 | 1901 → 1911 | 0.012957322372915301 | 6.108061522762896e-09 | 1.8185003109437207e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
Continuity assessments
- Rock Island, Village (1901) → Rock Island vl (1911): name_change_requires_review
Area separations
| Earlier area | Continuing area | Separate area | Retained fraction | Separated fraction | Comparison status |
|---|---|---|---|---|---|
| Stanstead · 1891 | Stanstead · 1901 | Rock Island, Village | 0.9931860383867168 | 0.0068139616132813 | approximately_common_geography_subject_to_variable_and_source_review |