Family Relationship of

Gilbert de Clare

Magna Carta Surety

19th Great-grandfather to

Melvil Dewey

Inventor of the Dewey Decimal System

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Gilbert de Clare

Isabel Marshal

Sir Richard de Clare

Maud de Lacy

Sir Gilbert de Clare

Joan of Acre

Margaret de Clare

Hugh de Audley

Margaret de Audley

Ralph de Stafford

Elizabeth de Stafford

John de Ferrers

Robert de Ferrers

Margaret Despencer

Phillippa Ferrers

Sir Thomas Greene

Elizabeth Greene

William Raleigh

Sir Edward Raleigh

Margaret Verney

Sir Edward Raleigh

Bridget Raleigh

Elizabeth Cope

Bridget Dryden

Anne Marbury

Susanna Hutchinson

William Cole

Benjamin Cole

Benjamin Cole

Polly Cole

Joel Dewey

Melvil Dewey

Dewey Decimal System