Karl Johan "Jonni" Hellström (13 May 1907 – 6 November 1988, Verdun, Montreal,Canada) was a Finnish boxer who competed in the 1928 Summer Olympics. "The Fighting Finn" was born in Mariehamn and died in Canada. In 1928 he was eliminated in the quarter-finals of the welterweight class after losing his fight to Robert Galataud. 1928 Olympic results. Below is the record of Johan Hellström, a Finnish welterweight boxer who competed at the 1928 Amsterdam Olympics: Round of 32: bye. Round of 16: defeated Fred Ellis (South Africa) on points. Quarterfinal: lost to Robert Galataud (France) on points.
https://en.wikipedia.org/wiki/Johan_Hellstr%C3%B6m