The one on the far left is more French artillery or US artillery (based on the French) during the early to mid 1800s. The middle is possibly a German or French hunting sword, and the far right -
The scabbards on the far left and right look too new and good to be antiques. There are reproductions especially made for the US Civil War and so I would be
extremely cautious about that one until you could have some one knowledgable look at up close.