birthhigh confidence
1846-01-01
1 linked sourceBorn 1846-01-01 · Died 1910-01-01
Joannes Henricus Albertus Antonius Kalff was born (1846-01-01). Source: Wikidata referenced P569 statement
Joannes Henricus Albertus Antonius Kalff died (1910-01-01). Source: Wikidata referenced P570 statement
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1846-01-01
1 linked source1910-01-01
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Accepted in the user-authorized Wikidata CC0 bulk publication run.
Q108704738$202D442C-416A-44AF-ABE6-100D3EC6C205; 2 source anchors · Wikidata · P569
Open original sourceQ108704738$20AC4A45-1778-40EF-A960-CEC1B656084D; 2 source anchors · Wikidata · P570
Open original source