The Club keys

[BunnyFan]

Can anyone help me piece something together.
I am trying to make a list of the different keys and which letters identified wich city and so far I only have

Baltimore - BL
Chicago - C
Lake Geneva - W
Los Angeles - LA
Miami - F
Montreal - M
New Orleans - NO
New York - NY
Phoenix - PA
St. Louis - SL
San francisco - SF
Jamaica - J

I anyone can add to my list it greatly appreciate it.

BunnyFan