Originally posted on 06/24/2013:

We stick to Wikipedia being the most credible of the sources and they list 2 names for the Boston Red Sox (Americans and Red Sox) so we will not value your claim:

https://en.wikipedia.org/wiki/Boston_Red_Sox#History

And here a pretty detailed article founding why your claim is invalid:

http://www.baseball-almanac.com/arti...ms_story.shtml

Quote from the latter:

Stout and Johnson, earlier in Red Sox Century, noted what I found in my own reading of the several Boston daily newspapers of this era, regarding both the AL and NL teams in Boston: "Neither team had a nickname, nor would they for several more seasons. Both were simply called 'the Bostons,' although to differentiate between the two clubs, fans, sportswriters, and players commonly began referring to the NL entry as 'the Nationals,' and their American League counterparts as 'the Americans.' Other nicknames, such as the Pilgrims, Puritans, Plymouth Rocks, Somersets (so named after owner Charles Somers), or Collinsmen (after manager Collins) for the AL team and the Beaneaters, Triumvirs, or Seleemen (after manager Frank Selee) for the Nationals, were convenient inventions of the press. Their subsequent use by many historians is misleading. None of these nicknames was ever widely used by either fans or players."