The St. Joseph Gazette introduced the 1886 team in an article on March 3, 1886. It reported that Charles G. Fischer, in 1885, was a pitcher for Portland, Maine. According to Baseball-Reference, that player was Charlie Fischer
(
https://www.baseball-reference.com/r...d=fisher006cha), who played with Kansas City and Chicago/Pittsburgh in the Union Association in 1884. The photo from Baseball-Reference isn't great, but there is also some similarity, I suppose.
I was thinking Fischer was actually Dad Clarkson, who was with Chicago that spring but does not show up on an Old Judge card. This ID makes more sense.