These links go to the OhioLINK catalog. Check to see if Wright State has the book here before you request it.
These are just starting places--there are many great online collections of Civil War and Reconstruction documents.
To find more, Google digital [or some version of this word] collections [your topic keywords] site:.edu.
You can also try site:.org (this would capture those by historical societies, for example) but remember that .org sites may be of poor quality--be sure to check who is sponsoring the website and what they are all about!
Site:.gov will include U.S. government sites, including our national archives, Smithsonian institutions, and government departments.
All the resources below are available only in the Dunbar Library or off-campus by authenticating with your campus login (w number) and password.
Unlike the websites in the box above, these are only for Wright State students--we pay lots of money for subscriptions to these.