Appointment of Meriwether Lewis Clark, D.H. Mahan, and John McRea to a Board of Engineers to supervise the route of the Baltimore and Ohio Railroad Co. to and through Wheeling, Virginia, signed John B. Floyd, June 17, 1850, A0289-01064. Missouri Historical Society Library and Research Center.

Appointment of Meriwether Lewis Clark, D.H. Mahan, and John McRea to a Board of Engineers to supervise the route of the Baltimore and Ohio Railroad Co. to and through Wheeling, Virginia, signed John B. Floyd, June 17, 1850, A0289-01064. Missouri Historical Society Library and Research Center. https://mohistory.mobiusconsortium.org/repositories/2/digital_objects/12506 Accessed September 19, 2024.