![Melvil Dewey](images/inventors/melvil-dewey.png)
![Roger le Bigod](images/royal/roger-le-bigod.png)
Family Relationship of
Melvil Dewey
Inventor of the Dewey Decimal System
21st Great-grandson to
Roger le Bigod
Magna Carta Surety
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Dewey Decimal System
Inventor of the Dewey Decimal System
Magna Carta Surety
★ → Click or tap a name to see more details including source citations.
Dewey Decimal System