- American Federation of Labor President , William Green, with Coal Mined by Progressive Mine Workers of America
- 'A.F. of L., Union Coal: President Green stopped and had this picture taken in front of a truck loaded with slabs of coal mines by the International Union, Progressive Mine Workers of America, the most recently chartered international union in the Federation. The foregoing are only a few of the exceptional exhibits at the Exposition. The display was so vast and interesting that thousands of visitors made several trips to the Music Hall, so as not to miss anything.'