Census boundary evidence
Upper Londonderry — 1901 census geography (NS)
This page identifies a census boundary representation. Source-table records below retain their own reporting-unit identity and geographic qualifications.
- Map snapshot identifier
- NS029020_1901
- Source boundary identifier
- NS029020
- Census vintage
- 1901
- Source label
- Upper Londonderry
- Province code
- NS
- District label
- Colchester
- Level
- csd
- Representation class
- E93_Presence
Census continuity group: Upper Londonderry
TCP UID: NS029020
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.
- Upper Londonderry — 1901 · 1901_V1T7, row 401 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 |
|---|---|---|---|---|---|
| Upper Londonderry · 1891 | 1891 → 1901 | 220789986.48550558 | 0.9999999999999996 | 0.9999999999999996 | APPROXIMATELY_EQUAL_EXTENTHistorical succession verified: False |
| Lower Onslow · 1911 | 1901 → 1911 | 0.6570868042963743 | 2.976071581667996e-09 | 3.839381593102459e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
| Middle Londonderry · 1911 | 1901 → 1911 | 1.9516967955804647 | 8.839607387305986e-09 | 1.6585494835834508e-08 | PARTIAL_OVERLAPHistorical succession verified: False |
| New Annan · 1911 | 1901 → 1911 | 0.4586661160673334 | 2.0773864040135884e-09 | 1.6148923347591707e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
| Upper Londonderry · 1911 | 1901 → 1911 | 220789982.36047393 | 0.9999999813169438 | 0.9999999857741594 | APPROXIMATELY_EQUAL_EXTENTHistorical succession verified: False |
| Wentworth · 1911 | 1901 → 1911 | 0.5221632168368461 | 2.3649768956850984e-09 | 2.667962737500832e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
Continuity assessments
- Upper Londonderry (1891) → Upper Londonderry (1901): supported_spatial_name_continuity
- Upper Londonderry (1901) → Upper Londonderry (1911): supported_spatial_name_continuity