This 1858 Bradford County, Pennsylvania landowner map is a great resource for identifying exactly where an ancestor may have lived just prior to the Civil War. Each town or township has a separate page along with a transcribed list of residents.
1858 Bradford County, Pennsylvania map
From actual surveys from LAKE AMES & DAVIDSON
Published by Wm. J. Barker • Philadelphia, Pennsylvania
A large printed version of this map was obtained from the Bradford County Library in West Burlington Township. There was a fee but I don't remember what it was. I do not know if the library still offers copies.
Ancestor Tracks website also has these maps online. Their images are much easier to read than I have available. You can download their images to see where your ancestor lived within the town. You can also order prints from them.