Libraries Association. . Power, E.L. Personal letter to Langston Hughes. January 20, 1932. Cleveland Public Library Image Collections. Retrieved from http://cplorg.cdmhost.com/cdm4/document.php?CISOROOT=/p4014coll13&CISOPTR=455&REC=1 on May 27, 2009. The Encyclopedia of Cleveland History (n.d.). Retrieved from http://ech.case.edu/ech-cgi/article.pl?id=PEL on May 16, 2009. External links Effie Power's correspondence available online at Cleveland Public Library Digital Gallery Effie Power correspondence with Hugh Lofting . Effie Power correspondence with Langston Hughes and with others concerning Hughes' work. Letter from Houghton Mifflin to Effie Power inquiring about "Mr. Andre Norton" and her reply correcting the error. 1873 births 1969 deaths People from Conneautville, Pennsylvania American librarians American women librarians Lecturers Library science scholars Writers from Pennsylvania American children's writers American women children's writers