I just discovered this website that has an excellent collection of photos of aircraft that were either stationed in Maryland or are preserved in Maryland. Wonderful assortment of photos, many of which I haven't seen before, from golden age biplanes to modern jets. Some very good detail photos and modeling possibilities, I think. I hope you enjoy looking at them.
Mike
http://silverhawkauthor.com/warplane-survivors-usa-maryland_280.html