Statistics for occurrence #1 of “Upper Mississippi” in chapter 4 of Colonel William Preston Johnston, The Life of General Albert Sidney Johnston : His Service in the Armies of the United States, the Republic of Texas, and the Confederate States.:

...t Rock Island, and the companies of the Sixth Regiment at Jefferson Barracks, amounting in all to about 420 men. April 8th.-In obedience to the above-mentioned order, General Atkinson set off for the Upper Mississippi , with six companies of the Sixth Infantry (220 men), which were embarked at Jefferson Barracks, Missouri, in the steamboats Enterprise and Chieftain. April 10th.-Arrived at the rapids of the Des Moin...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  

† 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.