Letter, 1863 December 14, Rumsey to Gillmore, with a review by Major Brooks, page 3National Park ServiceLetter to Gillmore from Rumsey containing a proposal for building a spy boat. Rumsey's proposal includes detailed plans for a narrow metallic vessel, including the propelling power, ballast, doors, and roof. Gillmore responded that this plan is to be examined & reported upon by Major Brooks. Major Brooks wrote that the boat described is deficient in two ways, and he suggested that Rumsey be sent for and examined in reference to scouting duty.
Letter, 1863 December 28, Wilcken to Brooks, on an arrangement for exploding torpedoes [Verso]National Park ServiceLetter to Brooks from Wilcken stating that a sketch of an arrangement for exploding torpedoes is enclosed. Wilcken also provides the names of the officers who assisted him in the sapping operations and in building splinter-proofs. Wilcken writes that to the best of his knowledge nine (9) torpedoes exploded accidentally during the siege.
Letter, 1863 September 15, Baldwin to Major Brooks [Verso]National Park ServiceLetter to Brooks from Baldwin, reporting results of Baldwin's experiments with the boat and oars constructed at the Engineer Depot. Baldwin reports that the 1000 pound boat can be carried with difficulty by twenty men.
Sketch and plan of direct communication with the front along the beachNational Park ServiceSuess' sketch and written description of the plan of forming a direct communication along and parallel to the beach, connecting forward lines. Includes detailed drawing of trenches, 4th and 5th Parallels.