These maps of the Mississipi and tributaries were produced by the Mississippi River Commission and each book is packed with numerous maps. The publications covering the St. Francis and White tributaries are particularly hard to find. Please see the images.
The books are:
Maps of the Mississippi River. Cairo, Illinois, to the Gulf of Mexico, Louisiana. 17th edn, 1949. 62 maps and accompanying sheets providing an index to the main maps placed on lower magnification maps, an index of place names, sheets with special features (e,g, profiles, bridges, principal locks), and sheets showing port facilities. There is a description of the folio on an accompanying sheet (typescript from the Mississippi River Commission, President's Office.)
Maps of the St. Francis River. Lake Wappapello, Missouri to the Mississippi River. 1st edn, 1946. 15 maps plus accompanying sheets
Maps of the White River. Batesville, Arkansas to the Mississippi River. 1st edn, 1946. 13 maps plus accompanying sheets