His paternal grandparents were Edward Griffin Hitchcock (1837–1898), son of Reverend Harvey Rexford Hitchcock (1800–1855), and Mary Tenney Castle (1838–1926), daughter of Castle & Cooke founder Samuel Northrup Castle (1808–1894).
# Henry Northrup Castle (August 22, 1862–January 30, 1895) married Frida Steckner (1869–1890) and then Mabel Rosamond Wing (1864–1950) and died in the wreck of the SS Elbe.
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In 1940 the memorial funded a preschool teaching facility at the University of Hawaii at Manoa.
castle | Samuel Beckett | Windsor Castle | Samuel Taylor Coleridge | Samuel Johnson | Samuel Pepys | Samuel L. Jackson | Castle | Edinburgh Castle | Balmoral Castle | Castle (TV series) | Samuel R. Delany | Samuel Barber | Prague Castle | Samuel Goldwyn | Samuel | Castle Donington | Samuel Alito | Corfe Castle | Castle Hill | Castle Hill, New South Wales | Samuel Butler | Powis Castle | Samuel Ramey | Roy Castle | Colditz Castle | Castle Combe | Samuel Morse | Samuel Gompers | Samuel de Champlain |