Statistics for occurrence #1 of “Slidell” in chapter 57 of The Annals of the Civil War Written by Leading Participants North and South:

..., and the Unitel States was made public. The United States agreed to release the prisoners, but declined to apologize to the English flag for an alleged offense where none was intended. Mason and Slidell joined their families in London in January, 1862, and their further actions passes out of the ken of the writer.
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Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
† John Slidell 1,060 44 22 0 0 user votes
Slidell 940 0 176 0 0 user votes
J. Slidell 17 0 1 0 0 user votes
Alesers Slidell 12 0 0 0 0 user votes
Rosine Slidell 11 0 1 0 0 user votes
Hon John Slidell 6 0 0 0 0 user votes
Alexander Slidell 5 0 1 0 0 user votes
Nr Slidell 4 0 0 0 0 user votes
L. Slidell 2 0 0 0 0 user votes
Matilda Slidell 2 0 0 0 0 user votes
Mathilde Slidell 1 0 1 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.