found: Johan Polet, 1894-1971, 2018:p. 135 (b. Amsterdam, Aug. 17, 1894) p. 137 (d. Amsterdam, Feb. 11, 1971)
found: Klein Cultureel Woordenboek van de Nederlandse kunst, 2005(Polet, Johan; b. Amsterdam, 1894; d. Amsterdam, 1971; sculptor)
found: Beeldend Benelux : biografisch handboek, 2000(Polet, J. (Johan); b. Amsterdam, Aug. 17, 1894; d. Amsterdam, 1971; draughtsman and sculptor)
found: Dutch Wikipedia, Apr. 24, 2019(Johan Polet; b. Amsterdam, Aug. 17, 1894; d. Amsterdam, Feb. 11, 1971; Dutch sculptor)