Statistics for occurrence #1 of “St. Louis” in chapter 19 of Benson J. Lossing, Pictorial Field Book of the Civil War. Volume 1.:

...surances, in writing, of his treasonable purposes, and of the complicity with him of Major William Henry Bell, a native of North Carolina, who was then commander of the United States military post at St. Louis , and having in charge the Arsenal there. On the day when the President called for troops, Frost hastened to remind the Governor that it was time to take active measures for securing the co-operatio...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
St. Louis (Missouri, United States) 2,551 82 591 0 0 user votes
St. Louis (Michigan, United States) 4 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.