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≈ Reconstructed person · research hypothesis

Johannes Martinus de Groot

observed 1740–1751possible birth 1651–17404 observations1 name variantsmedium confidence

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Why are these mentions grouped?

The indexed name is exact and distinctive.

Method code: exact-name+adaptive-chronology-v2

Supporting registrations

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Possible VOC connections

Research leads, not confirmed identities. The score is not a probability.

12 medium and exploratory leads

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