Statistics for occurrence #1 of “Pleasanton” in chapter 45, regiment US5Cav of Frederick H. Dyer, Compendium of the War of the Rebellion: Regimental Histories:

...the Potomac, to March, 1862. 1st Brigade, Cooke's Cavalry Reserve, Army of the Potomac, to July, 1862. 1st Brigade, Cavalry Division, Army of the Potomac, to September, 1862. 1st Brigade, Pleasanton 's Cavalry Division, Army of the Potomac, to November, 1862. Averill's Cavalry Brigade, Army of the Potomac, to February, 1863. Reserve Brigade, 1st Division, Cavalry Corps, Army of the Potoma...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Pleasanton 453 36 125 0 0 user votes
A. Pleasanton 174 0 0 0 0 user votes
Hooker Pleasanton 94 0 0 0 0 user votes
Alfred Pleasanton 91 0 5 0 0 user votes
Augustus Pleasanton 2 0 0 0 0 user votes
Gen Pleasanton 2 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.