 On March 30, 1920, Brennan won a ten-round newspaper decision from the "Chicago Tribune" over Devere in Chicago, Illinois.The battle was hard-fought, with Devere cut over the left eye in the seventh, and showing fatigue by the finish.On July 3, 1917, Brennan knocked out Soldier Jones in a second-round technical knockout at the Grande Alle Rink in Quebec City, Quebec.