The footnote indicates that E.R. Lowe was of Tucson, AZ in 1947. So, I did a Google search and hit this:

"Edwin Rogers Lowenstein, supported by Cleveland mobsters Moe Dalitz and Morris Kleinman, establishes bookmaking operations under E.R. Lowe & Co. with Harold Fischer and Fred Kreisler in Tucson, Arizona and Albuquerque, New Mexico This becomes one of the earliest syndicate criminal activities in the Southwestern United States and is eventually known as the "Tucson Front". The Tucson Front would later include front businesses such as the hotel chain run by George Gordon."

This is from a Wikipedia page "1947 in Organized Crime". Link is here: http://en.wikipedia.org/wiki/1947_in_organized_crime

Looks like "Lowe" was not his full, given name.

Great work by you and your friends! And I'm really glad that Pam's puzzle is solved!!

Jim