Statistics for occurrence #1 of “Pa.” in chapter 36 of Frederick H. Dyer, Compendium of the War of the Rebellion: Regimental Histories:

...
Organized at Pa. tucket as 1st New England Cavalry, afterwards designated 1st Rhode Island Cavalry, December 14, 1861, to March 3, 1862. Left State for Washington, D. C., March 12 and 14, 1862. Attached to Sto...
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.