Sidney Alderman Blackmer (July 13, 1895 – October 6, 1973) was an American actor who appeared in dozens of movies between 1914 and 1971, usually in major supporting roles. He was also a major Broadway performer.
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"Sidney Blackmer" Scripts.com. STANDS4 LLC, 2020. Web. 7 Aug. 2020. <https://www.scripts.com/actor/sidney_blackmer>.
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