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

...inidad the Keystone State lost our trail, and, instead of pursuing us to Paramaribo and Maranham, turned back to the westward. We learn from the same papers that the enemy's steam-frigate Powhatan, Lieutenant Porter , with more sagacity, pursued us to Maranham, arriving there one week [four days] after our departure. At a subsequent date, Lieutenant (now Admiral) Porter's official account fell into my hands, an...
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