A few names spring to mind in cronological order: Charlie Mitchell Bob Fitzsimmons Terry McGovern Barbados Joe Walcott Sam Langford Jack Dillon Jack Dempsey Harry Greb Mickey Walker Joe Louis
You forgot Charley BUrley who owned Archie Moore and stopped Jt Turner Who was a 6-3 220 lb journeyman compared to the 5-9 151 Burley. Damn know thats what I call a giant killer