Statistics for occurrence #1 of “Mr. Isherwood” in chapter 32 of Admiral David D. Porter, The Naval History of the Civil War.:
...e in not cutting down some of our heavy steamships and converting them into iron-clads.
Mr. Fox bends all his energies towards introducing iron-clads into the Navy.
Mr. Lenthall Chief-constructor.
Mr. Isherwood Chief of Bureau of engineering.
Rear-Admiral Dahlgren and his guns.
Mr. Fox introduces the 15-inch gun into the Navy.
Ericsson's claim as an inventor.
Congress wakes up in regard to the requireme...
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