Here's another perfect example of how seemingly legitimate information on well-crafted websites, can cause further confusion. If you google "Chicago Union Giants", you will find the following website. Very interesting reading, but has many facts that are just plain wrong:
http://www.evansvillehistory.net/Baseball.htm
For instance, it states: "The Chicago Unions, sometimes called the Chicago Union Giants, or the Leland Giants was a team composed entirely of Black players from Chicago." And later in the essay, the author takes this self-proclaimed liberty when describing an 1898 game, referring to the 'Chicago Unions' as the 'Union Giants', when in fact there was not yet such a team.
The internet is great, but it's loaded with crap.