I was just leafing through Amazing Stories, Vol. 30, No. 6, June, 1956, and found a letter from Roger Ebert of Urbana, Illinois. Roger writes:
"Dear Mr. Browne:
The 30th Anniversary issue of AMAZING STORIES was superlative. The artwork was masterful, the predictions spellbinding, the stories themselves classics, and the overall issue the finest ever published by you..."
The issue Roger refers to would be that of April, 1956, which features "John Jones's Dollar" by Harry Stephen Keeler! Apparently Roger read it, granted it a place among the classics, enjoyed the masterful Visaphone illustration, and was spellbound by the predicted rise of the Psycho-Erg, all at the age of 13.