Where was that American hero, Sergeant Bilko, originally based?

The Phil Silvers Show, originally titled You'll Never Get Rich, is a sitcom which ran on CBS from 1955 to 1959 for 142 episodes, plus a 1959 special The series starred Phil Silvers as Master Sergeant Ernest G. Bilko of the United States Army. The series was originally set in Fort Baxter, a sleepy, unremarkable U.S. Army post in the fictional town of Roseville, Kansas, and centered on the soldiers of the Fort Baxter motor pool under Master Sergeant Bilko. Later (in the fourth season) the show's setting changed, when the men of Fort Baxter were reassigned to Camp Fremont in California. This mass transfer was explained in storyline as being orchestrated by Bilko, who had discovered a map showing a gold deposit near the abandoned army post.