Statistics for occurrence #1 of “U. S. Mortar” in chapter 18 of Admiral David D. Porter, The Naval History of the Civil War.:

...ccomplished. To yourself and the officers and seamen of the mortar flotilla the Department extends its congratulations. I am, respectfully, Gideon Welles. Commander David D. Porter, Commanding U. S. Mortar Flotilla, etc., etc.
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U. S. Mortar 6 4 0 0 0 user votes

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