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Male Ralph DeSudeley Click to view Ralph DeSudeley in the family tree

1   Ralph's father was John DeSudeley and his mother was Grace De Tracy.  His paternal grandparents were Harold DeMantes and Matilda Unknown; his maternal grandfather was Henri De Traci. He had a brother named William.1 

1 2931.ftw
Further source/citation:
World Family Tree Vol. 27, Ed. 1 @ Tree #2931