I wonder how it was these entire regiments came to be ordered for that service? I can understand if they were largely made up of riverboatmen or something like that, but would've still expected them to have been volunteers instead of being commandeered wholesale for the job.
The Courthouse in Vicksburg during the war. When the war started, the Courthouse wasn’t completely finished. The iron works had been delayed by the war, as they were coming from Ohio. Also notice that the hill grading was not completed.