Statistics for occurrence #1 of “Portsmouth, N. H.” in year 1861, month June, day 7 of Rebellion Record: a Diary of American Events, Diary from December 17, 1860 - April 30, 1864:

...he Third Maine Regiment Volunteers, Col. Howard, arrived at Washington.--(Doc. 238.) A crew of 402 seamen, ordinary seamen, and landsmen, left the receiving-ship North Carolina at Brooklyn, for Portsmouth, N. H. , where they will constitute a ship's company for the United States frigate Santee, which, after lying in various positions at the Navy Yard for half a century, has been put in commission for blockade...
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