how do i find sources on the Civil War and prisons?
If you want books, click on the link for COMCat. You can choose the all keyword search and type in your terms. Some good results appear. I suggest when you select a relevant item that you also click on the appropriate subject string you see, which will take you to other good sources. For articles, use the History and Genealogy LibGuide. This gives you some great resources. You might want to start by using the subject terms you found in your book search.