Carolyn Keene is a Stratemeyer Syndicate pseudonym. As per kms454, books in the Nancy Drew series that have the same publishing year, but exhibit unique variations, are to be added to the collection as duplicates due to their historical and research significance. UP-PAT Juvenile-ed copy 2 is unique from copy 1 and has been added as a duplicate.
Reviewed/Cited In:
Johnson, D. Stratemeyer pseudonyms and series, 193S.44