Relationships between Donald Jack Roydhouse and Grace Thomas
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father
Jack Roydhouse
Birth September 24, 1892 -- Adelaide, South Australia Death July 18, 1986 (Age 93) -- Geelong, Victoria, Australia
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mother
Grace Thomas
Birth August 25, 1866 -- South Australia Death September 29, 1941 (Age 75) -- Perth, Australia
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Relationship: paternal grandmother