The Louisiana in the Civil War Message Board

Hattie Sweet; confederate spy?

I have some sketchy information from a biographical short-story by one Jim Arthur dating back to 1983 that I'm trying to verify: It concerns a brothelmadame named Hattie Sweet who operated a "house of ill repute" in No.38 Bourbon Street, New Orleans from early 1860 untill her death in a knifefight with her accountant, Hubert Travis Styles, on April 19th. 1869. She is alledged to have travelled to New York, Washington and Boston in the summer of 1861, where she circulated in the "high society", and was employed as a spy in the service of the confederate military intelligence on-and-off during the war. My searhes have come up empty-handed, and I'm hoping the messageboard might help shed some light on this story.