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Full siblings of Duke of Bittersweet
(This list may not be comprehensive. This list only contains those dogs in the database which have the same sire and dam as this dog. Dogs that have not been entered into the database will not appear in this list.)
Pride of Sing Sing (2/8/1939-)
Black Sambo of Bittersweet (2/8/1939-)
Sir Wilfred Grenfell (2/8/1939-)