Help with Civil War Debate?

Hello. In social studies, we are going to have a Civil War debate: North vs. South. I was assigned to the south, and the class is divided in half, and each side has one team leader. There’s about 25 students in the class, so about 12-13 kids on my team. The team leader gave each student 4 topics to work on, and my teacher gave us a list of 52 topics. My topics are: The Battle of Antietam; The Battle of Shiloh; The Battle of Chancellorsville; and the Emancipation Proclamation. I’ve honestly spent a couple of hours looking through the textbook (which mentions little of the battles), and through school books. We aren’t allowed to take out any books from the school library because all the books about the Civil War is supposed to stay in my teacher’s classroom for everybody to use. I may be able to get books from the public library (depending how busy my mom is with work). So my question is, do you know of any reliable and helpful books; websites; and etc. which may be able to help me? I have to have 30 index cards in total (so about 8 for each topic) and I already have a few. However, they are mostly about poor leadership and such, though I would like to find something other than poor leadership (which is hard for the battles). And this isn’t last minute either.