Well, no one has stepped up, so I downloaded some tools from other forum members and went to work on my own. For now, my Baseball Saga dynasty is temporarily on hold while I work on this. I've found a ton of old pictures, tobacco cards, and the like from the 1800's. There's two main problems with them: they tend to be in black and white, and it tends to be hard to find some of the more obscure teams. Allen & Ginter cards are nice for color, so I do have some of that. The rest I'll have to make up as best I can. I don't have everything done yet, but I thought I'd post here for comments and suggestions.
Anyway, here's a look at what I've accomplished so far:
Top Row: left to right
Cincinnati Reds
Louisville Grays/Eclipse/Colonels
Indianapolis Blues
Milwaukee Grays
Providence Grays
Indianapolis Hoosiers
Chicago White Stockings
Bottom Row: left to right
Syracuse Stars
Syracuse Stars
Philadelphia Quakers
Detroit Wolverines
New York Giants
Baltimore Orioles
New York Giants