On April 3, 1862 Maj. Julius Kellersberg wrote Gen. P.O. Hebert about the defense of the upper bay at Galveston, centering on Red Fish Bar. "The canal, which is about 1000 yards long, should be left open for the present navigation; and old vessel, filled with coarse shells, should be in readiness, to be sunk in the mouth of the channel at a few hours notice. It would cost about $1500. The Revenue Cutter (CSS Dodge), which lays now at Lynchburg ought to be stationed behind the reef as a gunboat" Records of Confederate Sappers and Miners, A-K file via Vicki Betts.