Census boundary evidence
Sombra & Walpole Is — 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
- ON088005_1911
- Source boundary identifier
- ON088005
- Census vintage
- 1911
- Source label
- Sombra & Walpole Is
- Province code
- ON
- District label
- Lambton W-O
- Level
- csd
- Representation class
- E93_Presence
Census continuity group: Sombra & Walpole Is
TCP UID: ON088005
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.
- Sombra & Walpole Is — 1911 · 1911_V1T1, row 4691 unique_contextual_name_candidate
- Sombra & Walpole Is — 1911 · 1911_V2T2, row 1471 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 |
|---|---|---|---|---|---|
| Camden · 1901 | 1901 → 1911 | 0.08648494667158221 | 5.00717571145562e-10 | 1.8689462134062027e-10 | PARTIAL_OVERLAPHistorical succession verified: False |
| Chatham · 1901 | 1901 → 1911 | 2.092356379174524 | 5.534855990307911e-09 | 4.521597899348046e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
| Dawn · 1901 | 1901 → 1911 | 1.14935962379208 | 4.058529976892481e-09 | 2.4837748063664116e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
| Sombra & Walpole Island · 1901 | 1901 → 1911 | 462747102.68087906 | 0.99999997869237 | 0.9999999752607791 | APPROXIMATELY_EQUAL_EXTENTHistorical succession verified: False |
| Dover · 1901 | 1901 → 1911 | 0.598291795947406 | 2.123651814564713e-09 | 1.2929130786124636e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
| Moore · 1901 | 1901 → 1911 | 0.7812401299549427 | 2.5607141068356452e-09 | 1.6882658067476472e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
| Camden · 1921 | 1911 → 1921 | 0.09054014638604713 | 1.9565793847572288e-10 | 5.241957591867463e-10 | PARTIAL_OVERLAPHistorical succession verified: False |
| Chatham · 1921 | 1911 → 1921 | 1.5323298208710987 | 3.3113762875770664e-09 | 4.053432280622886e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
| Dover E & W · 1921 | 1911 → 1921 | 0.7143765504868411 | 1.543773107762432e-09 | 2.53569757985522e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
| Indian reserves · 1921 | 1911 → 1921 | 161535436.54963407 | 0.3490792954024647 | 0.9259542543178763 | PARTIAL_OVERLAPHistorical succession verified: False |
| Dawn · 1921 | 1911 → 1921 | 1.3381644029246336 | 2.8917833565396034e-09 | 4.725222843246238e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
| Enniskillen · 1921 | 1911 → 1921 | 8.788825578306915e-09 | 1.8992718290316756e-17 | 2.515878062601851e-17 | PARTIAL_OVERLAPHistorical succession verified: False |
| Moore · 1921 | 1911 → 1921 | 0.8344643222026911 | 1.80328368718963e-09 | 2.757363044661605e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
| Sombra · 1921 | 1911 → 1921 | 301211667.55165887 | 0.6509206829278396 | 0.9999999912189098 | LATER_WITHIN_EARLIERHistorical succession verified: False |
Continuity assessments
- Sombra & Walpole Island (1901) → Sombra & Walpole Is (1911): name_change_requires_review