Get a book on General Hookers campaigns and the "campfire" girls that would follow his forces..it's where the term "hooker" came from..
Had Fightin' Joe not received a severe knock on the head, which scrambled his wits for a bit, he would be known as a great general. After he recovered, (and was demoted) he was of noteworthy service to the Union.
The hooker etymology is composed of base canards. Has absolutely nothing to do with Fightin' Joe. Hookers are called "hookers," because they would "hook" elbows with prospective clients as they walked by.
The more one learns about Wesley Clark, the better Fightin' Joe Hooker looks. Just as the more one learns about Bill Clinton, the better Warren G. Harding appears in history.