Statistics for occurrence #1 of “Hillsboro River” in chapter 38 of Admiral David D. Porter, The Naval History of the Civil War.:

... attention from the expedition by shelling the town and fort and to land men under cover of the night at a point in Old Tampa Bay, some distance from the fort, to proceed overland to the point on the Hillsboro River where the blockade-runners lay, and destroy them. On the date mentioned, the Tahoma and Adela ran in abreast of the batteries, and shelled them slowly during the day, their fire being unusually a...
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Entity Corpus Doc Corpus Doc  
Hillsboro River (Florida, United States) 15 6 1 0 0 user votes

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