...rs at Point Lookout, except Major Hanvey, who was too sick to be removed, were put on board the boat Johnson, and at 1 o'clock in the morning were carried to the mail boat James T. Brady, bound for Washington city , and sailed up the Potomac. The wind blew fearfully cold, and as we were compelled to sleep on deck and in the gangway, our suffering was severe indeed. Fortunately I got near the boiler, and far...