Hi Ann, I've received 2 leads for websites. The first one I've visited and it's pretty good, the 2nd one I haven't been able to log onto yet. http://www.users.hockinghills.net/~conway/ironintr.htm http://www.wwd.net/users/Historical/furnaceohio.html Hope this is helpful Christine Welch Harrison cwelch@neo.rr.com