Leverich, James H. Letter, 1841 June 2. 1 letter. Location: Misc. James H. Leverich was a commission merchant in New Orleans. This two-part letter to Charles P. Leverich in New York City describes a duel in which S.W. Oakey killed a man who had libeled him in the Vicksburg Sentinel. It also discusses business matters and the need for a national bank. For further information, see online catalog. Mss. 4400.