Report of the Department of Traffic, Louisiana Purchase Exposition, compiled by J.M. Allen, traffic manager, no date, A0934-00137. Missouri Historical Society Library and Research Center.

Report of the Department of Traffic, Louisiana Purchase Exposition, compiled by J.M. Allen, traffic manager, no date, A0934-00137. Missouri Historical Society Library and Research Center. https://mohistory.mobiusconsortium.org/repositories/2/digital_objects/10649 Accessed September 19, 2024.