Statistics for occurrence #1 of “Cairo” in chapter 8.21 of Robert Underwood Johnson, Clarence Clough Buell, Battles and Leaders of the Civil War: The Opening Battles. Volume 1.:

...construction. I sent him back immediately to make examinations of the Tennessee and Cumberland with reference to the use of those rivers by gun-boats, and also to watch the enemy's moves toward the Cairo district. In answer to my appeal to the loyal governors for troops, regiment after regiment arrived at St. Louis from the whole North-west, but they were entirely without tents or camp equipage....
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Cairo (Egypt) 183 0 7 0 0 user votes
Cairo (Missouri, United States) 5 0 1 0 0 user votes
Cairo (Alabama, United States) 2 0 0 0 0 user votes
Cairo (Kentucky, United States) 2 0 0 0 0 user votes
Cairo (West Virginia, United States) 2 0 0 0 0 user votes
Cairo (Arkansas, United States) 0 0 0 0 0 user votes
Cairo (Egypt) 0 0 0 0 0 user votes
Cairo (Florida, United States) 0 0 0 0 0 user votes
Cairo (Georgia, United States) 0 0 0 0 0 user votes
Cairo (Indiana, United States) 0 0 0 0 0 user votes
Cairo (Iowa, United States) 0 0 0 0 0 user votes
Cairo (Kansas, United States) 0 0 0 0 0 user votes
Cairo (Mississippi, United States) 0 0 0 0 0 user votes
Cairo (Mississippi, United States) 0 0 0 0 0 user votes
Cairo (Mississippi, United States) 0 0 0 0 0 user votes
Cairo (Nebraska, United States) 0 0 0 0 0 user votes
Cairo (North Carolina, United States) 0 0 0 0 0 user votes
Cairo (Ohio, United States) 0 0 0 0 0 user votes
Cairo (Oklahoma, United States) 0 0 0 0 0 user votes
Cairo (Oregon, United States) 0 0 0 0 0 user votes
Cairo (Tennessee, United States) 0 0 0 0 0 user votes
Cairo (Tennessee, United States) 0 0 0 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.