You are right, Joe. I have been there for about the last two hours, just like a kid who had just discovered the candy store. I found it fascinating, exploring the music of George F. Root, Will S. Hays, and on and on . . .

Another good place, but not nearly so comprehensive is the University of North Carolina (better pictures of the sheet music, though)

Thanks again for one of the most useful places I have seen for the sort of research I have been doing lately.

I do have some ideas on the legibility issue. I will let you know if I get it to work for me.