The Stratemeyer Syndicate was the publisher of a number of series for children and adults including the Nancy Drew mysteries, the Hardy Boys[?], Tom Swift, Jr., and others.
Further Reading
Series Books & the Media: Or This Isn't All, Ilana Nash and David Farah, SynSine Press, 1996, hardcover, 404 pages, ISBN 0963994972
... as the wearer walks, the term was already doccumented as in use in the United Kingdom as early as 1912.
Writers and artists in the United States such as F. Sco ...