Census boundary evidence
Grand Valley vl — 1911 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
- ON062008_1911
- Source boundary identifier
- ON062008
- Census vintage
- 1911
- Source label
- Grand Valley vl
- Province code
- ON
- District label
- Dufferin
- Level
- csd
- Representation class
- E93_Presence
Census continuity group: Grand Valley vl
TCP UID: ON062008
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.
- Grand Valley vl — 1911 · 1911_V1T1, row 4424 unique_contextual_name_candidate
- Grand Valley — 1911 · 1911_V1T2, row 4380 unique_contextual_name_candidate
- Grand Valley vl — 1911 · 1911_V2T2, row 1209 unique_contextual_name_candidate
- Grand Valley — 1911 · 1911_V2T7, row 1209 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 |
|---|---|---|---|---|---|
| Grand Valley, Village · 1901 | 1901 → 1911 | 2482737.644044927 | 0.9999999455178382 | 0.9999997723973729 | APPROXIMATELY_EQUAL_EXTENTHistorical succession verified: False |
| Luther, East—Est · 1901 | 1901 → 1911 | 0.5650777539538271 | 3.5263860428535026e-09 | 2.2760263320453376e-07 | PARTIAL_OVERLAPHistorical succession verified: False |
| Luther E · 1921 | 1911 → 1921 | 0.5699662488733586 | 2.2957162651263567e-07 | 3.5568928497613172e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
| Grand Valley, VL · 1921 | 1911 → 1921 | 2482737.6391564393 | 0.9999997704283825 | 0.9999999817612683 | APPROXIMATELY_EQUAL_EXTENTHistorical succession verified: False |
Continuity assessments
- Grand Valley, Village (1901) → Grand Valley vl (1911): name_change_requires_review
- Grand Valley vl (1911) → Grand Valley, VL (1921): name_change_requires_review