That's what this organization says: Bismark Agyeman is expected to join SC Braga U19 this 2013-14 season. Bismark will be playing under U19 Head Coach and Academy Director Agostinho Oliveira. http://www.usgsoccer.com/agyeman-bismark.html Evidently a Ghana-born American citizen.
He seems to be from Columbus, Ohio, where he played (or perhaps plays?) for a school called Horizon Science Academy.
"January 9, 2014 Bismark Agyeman ... has a club contract with Sporting Club Braga U19. He primarily players center defensive midfielder, but he also player right defense. Agyeman ... was offered a club contract by Sporting Club Braga Academy Director Agostinho Oliveira. On December 23, 2013, Agyeman became a player for Sporting Club Braga U19." http://www.usgsoccer.com/agyeman-bismark.html
I can't find mention of him on the club web site, including the 2013/14 rosters for the top four teams. Plenty of clubs don't bother updating youth rosters midseason, so this may not mean anything, but the upshot is I'd still love to find some further confirmation of this. In any case, the agency lists him as a '95.
He ended up at Bowling Green, where he redshirted as a freshman. http://www.bgsufalcons.com/roster.aspx?rp_id=5326&path=msoc