Issues #1-3 in the Four Color series as 378, 400, 421.
Painted covers. Covers for FC421 and #4-11 by same artist.
Story takes up all interior pages, inside back cover (black and white) and back cover of comic. Paul Newman credit from Comicbook Marketplace (January 1997) [according to http://www.solarguard.com/tccomic.htm]. Paul Norris credit from http://www.solarguard.com/tccomic.htm and comparison with art in issue 5 and 6 (which GCD had as Paul Norris.) Original indexer had Frank Thorne has penciller and inker.
In Jerry Bails' Who's Who John Lehti is credited to Tom Corbett in 1953, and the artwork is identical to his series "Tommy of the Big Top". Paul Norris never made any stories. Al McWilliams had the first three in Four Color 1952, Lehti had five 1953,and Frank Thorne three 1954. See Error Reports #5660 with attachments. Art ID by Steinar Ådland January 2011