Arbre d'ascendance:
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Sarah W. (Benson) Black < Sarah B. Duffield < Edson B. Duffield < Mary E. Duffield < Cyrus Dufield < Isabel Duffield Margaret Mcclure < Cyrus Duffield < Belle Duffield Sarah W. Benson Black Margaret McClure Frères et sœurs Robert Vance Duffield David W. Dufield John L. Dufield Isabella Dufield Thomas J. Dufield Charles Dufield Eveline M. Dufield Allen Dufield |