Statistics for occurrence #1 of “Fortress Monroe” in page 96 of John G. Nicolay, The Outbreak of Rebellion:

... been taken. The officers had been admonished to vigilance, and preparation made to bring away the more valuable ships. It was Gen. eral Scott's design to advance troops to its support the moment Fortress Monroe should be secure. Under these circumstances occurred the sudden fall of Sumter, the President's proclamation, the secession of Virginia, and the immediate movement of Governor Letcher's State fo...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Fortress Monroe (Virginia, United States) 7,630 10 276 0 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.