Interesting Fact : On July 4, 1887 Alex McKinnon contracted typhoid pneumonia. He subsequently died in Charlestown, Massachusetts on
July 24, 1887 at the age of 30.
McKinnon is the earliest confirmed deceased player/card from the historical 1887 Old Judge set.
I saw this neat card (below) available here at the
19th Century Cards & ALL Baseball Postcards- B/S/T section.