surveyed and drawn under the direction of B'vt Maj. Genl. E.R.S. Canby, commanding fifth military district by L.M. Haupt, 2nd Lieut. U.S. Corp. of Engineers, March 1869. Haupt, Lewis M. (Lewis Muhlenberg), b. 1844. CREATED/PUBLISHED  NOTES 'Tracing made February 1877. Present shore-lines in front of Brownsville and Fort Brown, location of proposed break-water, depths of water &c., are shown in red. Buildings as they are now located. (Feb. 1877)' Oriented with north toward the upper left.