Statistics for occurrence #1 of “Lieutenant-Commander John G. Walker” in chapter 30 of Admiral David D. Porter, The Naval History of the Civil War.:

...was therefore arranged to go after these steamers and break up the enemy's resort at Yazoo City. The Baron deKalb, New National, Kenwood and Signal composed the naval part of the expedition under Lieutenant-Commander John G. Walker , while General Herron, with five thousand troops in transports, composed the military part. On approaching Yazoo City the enemy appeared in force, and the DeKalb, being the heaviest vessel, pushe...
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