Statistics for occurrence #1 of “Flag-officer McKean” in chapter 47 of Admiral David D. Porter, The Naval History of the Civil War.:

...tice when it became evident there was nothing else to do. As soon as Lieutenant Porter ascertained from the crew of the Abby Bradford the whereabouts of the Sumter, he obtained the permission of Flag-officer McKean , and started in pursuit of the Confederate vessel, following her from port to port to the coast of Brazil, and thence to the equator, from which point Semmes shaped his course, so that his trail was ...
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