Statistics for occurrence #1 of “Fort Pickens” in year 1861, month April, day 4 of Rebellion Record: a Diary of American Events, Diary from December 17, 1860 - April 30, 1864:

...be no doubt that serious movements are on foot. The tone of the southern press for the last week, and the concentration of troops at Pensacola, indicate a determination to precipitate a conflict at Fort Pickens , probably with a view to hasten the secession movement in Virginia.--Tribune, April 5.
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Entity Corpus Doc Corpus Doc  
Fort Pickens (Florida, United States) 2,050 65 38 1 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.