Northern bookseller, Southern lawyer: Civil War to civil business

During America's Civil War, Charles Carroll Soule of Boston joined the 44th Massachusetts Infantry Regiment to fight for the North. John W. Park , of prominent Southern heritage, joined the Confederate cause, signing up with the Regimental Staff of the 1st Georgia Reserves . It is doubtful that their paths ever crossed on the battlefield, but they did cross about a quarter-century later in a business transaction involving books. Charles C. Soule, a Harvard graduate, became a bookseller sometime after the war and was the proprietor of the Boston Book Company. John W. Park became a prominent lawyer and was one of the organizers of the Georgia Bar association and eventually served as its president. In those professional capacities, these two accomplished men would cross paths because of their chosen fields after the fields of battle. I have evidence of this in the correspondence below. On September 6th, 1890, Soule wrote to Park about a credit to his account and enclosed a list of sec...