Other Magazine Awards
In case it isn't obvious from the following, the 1957 Worldcon took place in the UK.
American Professional Magazine
British Professional Magazine
1957 New Worlds
1957 Science-Fiction Times (James V. Taurasi, Sr., Ray Van Houten, and Frank Prieto, eds.)
1956 Inside & Science Fiction Advertiser (Ron Smith, ed.)
1955 Fantasy Times (James V. Taurasi, Sr. and Ray Van Houten, eds.)
1958 Fantasy & Science Fiction
"Hugo Award" is a service mark of the World Science Fiction Society, an unincorporated literary society.