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Anti-war demonstration, Workmen's Circle Camp Yungvelt (Pickering, ON), 1937.
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Workmen's Circle mandolin orchestra, Toronto, 1935.
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Workmen's Circle mandolin orchestra, Toronto, 1936.
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Workmen's Circle - I. L. Peretz School Mandolin Orchestra, Toronto, 1936.
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Workmen's Circle - I. L. Peretz Schools Educational Committee, Toronto, 1938.
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Teaching Staff of Workmen's Circle - I. L. Peretz Schools, Toronto, 1937.
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Isaac Matenko fonds, 1911-1971, predominant 1911-1935.