Chicago, June 21, 1904 - All in favor of the nomination will say aye!. Illustration shows an interior view of the convention hall, with an oversized Theodore Roosevelt leaning forward at a podium, holding a gavel raised in his right hand, in the foreground are the delegates attending the Republican National Convention, June 21, 1904, in Chicago, Illinois. Date 1904 June 15. Chicago, June 21, 1904 - All in favor of the nomination will say aye!. Illustration shows an interior view of the convention hall, with an oversized Theodore Roosevelt leaning forward at a podium, holding a gavel raised in his right hand, in the foreground are the delegates attending the Republican National Convention, June 21, 1904, in Chicago, Illinois. Date 1904 June 15.