These photos are great! I have a bunch of Hamilton history books displayed in my bookshelf, no need to be ashamed. It's just a way of looking into the future, really. If you look at these pics, and see how urban planning then worked, we can use it as examples for the future (ie: return of Street Rail).
There were some great pics I hadn't actually seen b4 tho, like the Main/Huxley shot. I think that theater is a collectors/comic shop now called 'Weird Things'. The bldg's still there, but the awning is gone.
Was the airport actually at Reid/Dunsmure? If you look at google maps sat image, it looks like the aiport was a lil more north by Melvin/Woodward (it's neat b/c it looks like the outline of runways):