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≈ Reconstructed person · research hypothesis

Willij de Boer

observed 1919–1921possible birth 1821–19194 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: Willij de Boer · Willy de Boer

Supporting registrations

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