Statistics for occurrence #1 of “Thomas O. Selfridge, Jr.” in chapter 1, page 43 of Thomas Wentworth Higginson, Massachusetts in the Army and Navy during the war of 1861-1865, vol. 1: prelminary narrative:

...s commanded by Capt. John Marston, a Massachusetts man, and the Cumberland, a sloop of war of twenty-four guns, in the absence of the captain by Lieut. George W. Morris, aided by Lieut. (now admiral) Thomas O. Selfridge, Jr. , both from this State, as were Acting Masters Randall and Kennison. The Cumberland, having been both rammed and fired into, sank with her flag still flying, carrying down with her more than one hun...
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