The hydraulic Press Brick yards in St. Louis produced a daily capacity of 642,000 brick, or 192,000,000 per year (this was around 1904). And they were not the only company in St. Louis doing this but I think they were the biggest producers in the State. Scott K. Williams, History's Time Portal to Old St. Louis http://www.usgennet.org/usa/mo/county/stlouis/ St. Louis City/County USGenNet History Messageboard http://www.usgennet.org/usa/mo/county/stlouis/webbbs/queries/index.cgi