From the Mississippi Department of Archives and History Governor Clark Collection. Receipt from J. R. Cobourn given to Mississippi Governor Charles Clark for payment of bills from the South-Western Telegraph Company for telegrams sent in November and December of 1864.

From the Mississippi Department of Archives and History Governor Clark Collection. Letter from J. R. Coburn to Mississippi Governor Charles Clark, providing a list of monies for telegram charges in October of 1864, and a request for a treasury warrant from Clark to pay them.