Abstract A collection including more than 2,500 pieces of correspondence to and from Thomas W. Cridler, mostly relating to his role as European Commissioner for the Louisiana Purchase Exposition (the St. Louis World's Fair) held in St. Louis, Missouri in 1904. Some of Cridler's correspondence is with fair administrators and U.S. diplomatic figures; some is with representatives of European nations targeted for inclusion. Also in the collection are smaller accumulations of other types of fair-related...