Family John Gannon / Catherine Slaven (F46331): Our Family History

UPDATED: 25 July 2026

Family Chart | PDF

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Catherine Slaven

Clara Mary Gannon

(1887- )

John Joseph Gannon

(1888- )

Harold Henry Gannon

(1891- )

James Horace Gannon

(1891- )

Margaret Ethel Gannon

(1895-1963)