Acme Brick Co. Danville
Alton Brick Co. Alton
Barr Clay Co. Streator
Decatur Brick Manufacturing Co. Decatur
Hydraulic-Press Brick Co. Chicago
Lacon Clay & Coal Co. Lacon
Peoria Brick & Tile Co. Peoria
Richards Brick Co. Edwardsville
Southern Fire Brick & Clay Co. Chicago
Streator Brick Co. Streator
Western Brick Co. Danville