1860s American Civil War: Union officers' meeting before the final battle

See my collection here :

Please note that the descriptions linked to this collection are purely the fruit of my imagination, just for fun. Please, 🙏 bear with me as I am not a historian. Furthermore, I worked very hard to obtain these results, admittedly with several imperfections. But I thought that the realistic vintage image style was much more appropriate for this theme than the fantasy style.