Inside front cover.
This is more likely the work of Sol Harrison on script, pencils and inks. Nicolosi does not appear to have done fillers prior to 1953. Waldinger does not appear until about 1954.
Script and art credits verified by copies of DC editorial records sent to Gene Reed from E. Nelson Bridwell in 1986.
Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics [December 2007].