Catesby Ap Roger Jones (American National Biography)

Jones was an experienced officer and an expert on ordnance, whose resignation from the U.S. Navy in 1861 was a serious loss to the North. His work, together with that of his colleague [John M.] Brooke, made it possible for the South to manufacture its own heavy cannon even late in the war. Ironically, it was Jones's expertise in ordnance that prevented him from obtaining what he desired most--command of a warship.