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WikiPedia: Elmo_Roper http://www.ropercenter.uconn.edu/center/elmo_bio.h... https://web.archive.org/web/20091007081321/http://... https://news.google.com/newspapers?nid=888&dat=194... http://www.stat.cmu.edu/~fienberg/Stat36-303-03/Ne... https://viaf.org/viaf/93042560 http://edwardbetts.com/find_link?q=Elmo_Roper http://edwardbetts.com/find_link?q=Elmo_Roper https://www.wikidata.org/wiki/Q5366851#identifiers https://isni.org/isni/0000000082795791 https://id.loc.gov/authorities/names/n88205774