Alexander D. Blackader
type: Person
description: Canadian-American pediatrician (1847-1932)
birth date: 1847-06-19
death date: 1932-03-14
birth place: Montreal
death place: Montreal
children: Elsie Kemp
has occupation: pediatrician
has occupation: physician
has occupation: surgeon
has occupation: university teacher
additional property: PropertyValue
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  value: Alexander Dougall Blackader.png
additional property: PropertyValue
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  value: Montreal
additional property: PropertyValue
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  value: Montreal
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additional property: PropertyValue
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additional property: PropertyValue
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additional property: PropertyValue
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  value: physician
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additional property: PropertyValue
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additional property: PropertyValue
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  value: March 14, 1932
additional property: PropertyValue
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additional property: PropertyValue
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  value: Alexander
additional property: PropertyValue
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additional property: PropertyValue
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additional property: PropertyValue
  property ID: P2949
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additional property: PropertyValue
  property ID: P8081
  value: A39736
confidence:
  popularity graph score:
    score: 0.001
    score pct: 0
    tier: established
    components:
      sitelinks: 0
      sitelinks norm: 0.0
      unique citations: 7
      unique citations norm: 0.003
      monthly pageviews: 3
      monthly pageviews norm: 0.0
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  unique citations: 7
  monthly pageviews: 3
  yearly pageviews: 8
  pageview trend:
    m: 2026-08
    v: 3
  pageview trend:
    m: 2026-07
    v: 2
  pageview trend:
    m: 2026-06
    v: 2
  pageview trend:
    m: 2026-05
    v: 1
  tier: established
claims:
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    value: Alexander Dougall Blackader.png
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    value: Q340
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    value label: Montreal
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    value label: male
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    value label: president
    qualifiers:
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    value label: Elsie Kemp
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    value label: pediatrician
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    value label: physician
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    value label: surgeon
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    value label: university teacher
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    value label: Mount Royal Cemetery
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    value: Alexander D. Blackader
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    value label: Osler Library of the History of Medicine
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value: +1932-03-14T00:00:00Z
source count: 2
confidence: 0.4

value: Q104493181
source count: 0
confidence: 0.0
value label: Blackader

value: Q923
source count: 0
confidence: 0.0
value label: Alexander

value: Q71990283
source count: 0
confidence: 0.0
value label: Isadore B. Hirshberg Fonds

value: /g/11gxh73kqj
source count: 0
confidence: 0.0

value: blackader_alexander_dougall_16
source count: 0
confidence: 0.0

value: Blackader-10
source count: 0
confidence: 0.0

value: A39736
source count: 0
confidence: 0.0

source: Calgary Herald
stated in qid: Q1026672

source: Hartford Courant
stated in qid: Q1587159

source: Find a Grave
stated in qid: Q63056

source: Dictionary of Canadian Biography
stated in qid: Q838302

source: Hartford Courant
stated in qid: Q1587159

wikidata id: Q58815613
domain: human
level: standard
html url: https://4ort.xyz/entity/alexander-d-blackader
markdown url: https://4ort.xyz/entity/alexander-d-blackader.md
facts url summary: https://4ort.xyz/entity/alexander-d-blackader/facts.json
facts url standard: https://4ort.xyz/entity/alexander-d-blackader/facts.json
facts url full: https://4ort.xyz/entity/alexander-d-blackader/facts.json
data source: Wikidata (CC0 / public domain)
license: https://creativecommons.org/publicdomain/zero/1.0/
api version: v1
served at: 2026-08-25T11:50:38.444823Z
entity updated at: 2026-05-03T16:20:22.557058+00:00Z
entity created at: 2026-05-03T14:14:54.058600+00:00Z