I wondered the same thing...and I think that "Club" and "Casino" are often used interchangeably, and usually it's o.k...but at times it can cause confusion. Sort of like "checks/cheques" and "chips" are often used interchangeably...

I also wondered about Tommy Thebo being named as "owner" of the Apache Club (1941 article)....and Tommy Thebo "ran" the Apache Casino (1964 article)....

Fun stuff...!