Possible Clues:

• Dr. Helen Nash's city, for short
• City known for gooey butter cake (Abbr.)
• City east of KC
• Home to the Gateway Arch
• City where Moses Dickson started the Knights of Liberty, for short
• Andy Cohen's hometown (Abbr.)
• Westernmost NL team, once
• First U.S. city to host the Olympics (Abbr.)
• National Blues Museum city, for short
• Annie Malone May Day Parade city, for short