Great lists, everyone. I really like it where baseball autographs and baseball history intersect. Sorry I'm so late to the thread.
A few years ago I launched a baseball history website that's built around autographs. Below are signatures of Harry Stovey and Gus Weyhing. Stovey's page can be accessed
here; Weyhing's
here.
Bill Dahlen
has a page. So does
Jack Glasscock. I almost forgot
Ross Barnes and
Tommy Bond.
The 19th century stuff is all so fascinating. This is really a neat thread. It's tough to find a place to share the interest of 1800s baseball. Glad to join you in this...