Census boundary evidence
Tisdale & Porcupine District — 1921 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
- ON148177_1921
- Source boundary identifier
- ON148177
- Census vintage
- 1921
- Source label
- Tisdale & Porcupine District
- Province code
- ON
- District label
- Timiskaming
- Level
- csd
- Representation class
- E93_Presence
Census continuity group: Tisdale & Porcupine District
TCP UID: ON148177
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.
- Tisdale & Porcupine District — 1921 · 1921_V1T16, row 3740 unique_contextual_name_candidate
- Tisdale & Porcupine District — 1921 · 1921_V1T27, row 3283 unique_contextual_name_candidate
- Tisdale & Porcupine District — 1921 · 1921_V1T38, row 3283 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 |
|---|---|---|---|---|---|
| Bristol · 1911 | 1911 → 1921 | 94341042.26122706 | 0.9999999818870673 | 0.032218305071895444 | EARLIER_WITHIN_LATERHistorical succession verified: False |
| Carscallen · 1911 | 1911 → 1921 | 93206544.81364365 | 0.999999990509237 | 0.03183086410247814 | EARLIER_WITHIN_LATERHistorical succession verified: False |
| Denton · 1911 | 1911 → 1921 | 0.8271146363566028 | 8.84295940585035e-09 | 2.8246700529106796e-10 | PARTIAL_OVERLAPHistorical succession verified: False |
| Doloro · 1911 | 1911 → 1921 | 1.6166595752284538 | 1.7496511776521263e-08 | 5.521036247181458e-10 | PARTIAL_OVERLAPHistorical succession verified: False |
| Keefer · 1911 | 1911 → 1921 | 92193865.55427231 | 0.9999999829771375 | 0.031485025127877195 | EARLIER_WITHIN_LATERHistorical succession verified: False |
| Mountjoy · 1911 | 1911 → 1921 | 2.3383000897068857 | 2.516740653942327e-08 | 7.985502792222073e-10 | PARTIAL_OVERLAPHistorical succession verified: False |
| Ogden · 1911 | 1911 → 1921 | 0.00028570685407191377 | 3.024409579007109e-12 | 9.757143195569255e-14 | PARTIAL_OVERLAPHistorical succession verified: False |
| Price & Fripp · 1911 | 1911 → 1921 | 95516844.28001545 | 0.5059792949700682 | 0.03261985191977296 | PARTIAL_OVERLAPHistorical succession verified: False |
| Porcupine Branch T N O Ry · 1911 | 1911 → 1921 | 1.1593909912209042 | 1.3034536246214573e-08 | 3.9594233599128036e-10 | PARTIAL_OVERLAPHistorical succession verified: False |
| Thornloe · 1911 | 1911 → 1921 | 1.659004061943126 | 1.8041066968058782e-08 | 5.665646435746952e-10 | PARTIAL_OVERLAPHistorical succession verified: False |
| Tisdale tp & Porcupine district · 1911 | 1911 → 1921 | 2067209493.7803528 | 0.017560995795558053 | 0.7059704294310781 | PARTIAL_OVERLAPHistorical succession verified: False |
| Turnbull · 1911 | 1911 → 1921 | 1.7665081000345755 | 1.8687228720282583e-08 | 6.03278228804127e-10 | PARTIAL_OVERLAPHistorical succession verified: False |
| Whitesides · 1911 | 1911 → 1921 | 1.5231445156921708 | 1.6841825435628654e-08 | 5.201674000937258e-10 | PARTIAL_OVERLAPHistorical succession verified: False |
| Whitney · 1911 | 1911 → 1921 | 0.004168831175180623 | 4.281992860621514e-11 | 1.4236929270220548e-12 | PARTIAL_OVERLAPHistorical succession verified: False |
| Other parts · 1911 | 1911 → 1921 | 286545233.1698288 | 0.005084620784950243 | 0.09785774587480035 | PARTIAL_OVERLAPHistorical succession verified: False |
| Langmuir · 1911 | 1911 → 1921 | 1.2606838924607293 | 1.3728253888720883e-08 | 4.3053476273939267e-10 | PARTIAL_OVERLAPHistorical succession verified: False |
| Thomas · 1911 | 1911 → 1921 | 2.431146131952951e-08 | 2.5942973954988204e-16 | 8.302580284912784e-18 | PARTIAL_OVERLAPHistorical succession verified: False |
| Other parts · 1911 | 1911 → 1921 | 105942589.1864226 | 0.006948353103161242 | 0.03618033653967244 | PARTIAL_OVERLAPHistorical succession verified: False |
| Elk Lake Mining Division · 1911 | 1911 → 1921 | 1.4316517374498379 | 8.327391890222063e-10 | 4.889218025188702e-10 | PARTIAL_OVERLAPHistorical succession verified: False |
| Larder Lake Mining Division · 1911 | 1911 → 1921 | 0.4524684055491137 | 1.0409865990893053e-10 | 1.5452198508693738e-10 | PARTIAL_OVERLAPHistorical succession verified: False |
| Temagami Forest Reserve · 1911 | 1911 → 1921 | 93225791.8536934 | 0.014345735503508962 | 0.03183743713785268 | PARTIAL_OVERLAPHistorical succession verified: False |