Statistics for occurrence #1 of “The Potomac” in chapter 4 of Admiral David D. Porter, The Naval History of the Civil War.:

...n its part at that moment to take any hostile action; and amidst the daily increasing confusion of affairs which startled the Nation, even the Navy Department did not exhibit an unusual activity. The Potomac flotilla was chiefly engaged in moving up and down the river, gaining information of the enemy's movements, convoying transports to and from Washington, often fired upon, and only able to return the ...
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