...open only 1949-50 at this address according to The Gaming Table.

You may have seen this in Kling's The Rise of the Biggest Little City:

"In March 1950 the Wagon Wheel Bar was cited for using a marked 21 deck, and on April 11 the Reno City Council closed the business"

No word in the book about Pete or Jerry. Even today in Reno, you can find 21 dealers who can tell you what the down cards are before they're flipped!