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Ladovsky family, [190-]-2012.
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Kieltzer Sick Benefit Society, Toronto, [between 1930 and 1935].
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I. L. Peretz, Branch 26, Jewish National Workers Alliance, Toronto, 1931.
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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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Toronto Kielcer Maccabees Football and Sports Club, Toronto, [ca. 1933].
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Isaac Matenko fonds, 1911-1971, predominant 1911-1935.