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Camp Balfour Manor and Camp Yungvelt, 1938-1943.
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Anti-war demonstration, Workmen's Circle Camp Yungvelt (Pickering, ON), 1937.
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Isaac Matenko fonds, 1911-1971, predominant 1911-1935.
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Campers at Camp Yungvelt (Pickering, ON), 1939.
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Fishing in Camp Yungvelt (Pickering, ON), 1934.
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Gilbert Seltzer, [19--].