After many hours of searching, and a lot of fun learning about the history of flight, I have found, amongst others, Wright gliders, Bleriot's, Demoiselle, an Eagle (well, it is an original flyer), Antoinette, Avro tri-plane, a Bicylcle (gotta get around), Caproni, Caudron, Curtiss's, a bunch of Zeppelins, Dunne, du Temple, Ellehammer, Eole, Farmans, Fokker Spin, Grunau gliders, Lohners, the Opel & a few others, including a vintage car, or 2 as well as a steamboat.
This has really been an interesting journey, & I think that historical aircraft are pretty much unique to FS2004, as it the Schneider 1929 Race planes & scenery, & the Bugatti project from Lionheart.
The Schneider Project also was fascinating to read up.
I also found a suitable Wright Flyer splash screen. Our hobby has become so diverse, with very highly detailed jet liners & such like, & I think that taking a step back in time to where it all began could be worthy for those that would like to remember the trials & tribulations when flight began.
As I said, I'm using GW as a base, as the airports have been removed in USA, & it will be great to expand & find suitable period buildings.
Not too bad for a 15 year old sim.