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≈ Reconstructed person · research hypothesis

Theodorus Keijzer

observed 1860–1864possible birth 1791–18468 observations2 name variantsmedium confidence

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Why are these mentions grouped?

Name normalization or a strong historical spelling match and compatible chronology support this grouping. Less distinctive names require narrower time windows or recurring relationships.

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

Observed name forms: Theodorus Keijzer · Theodorus Keyzer

Supporting registrations

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