Statistics for occurrence #1 of “Colonel H. L. Abbot” in chapter 4, page 51 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 5: Forts and Artillery.:

...ordinary field-magazine, terrorized the Confederate gunners, and succeeded in silencing their enfilading batteries on Chesterfield Heights. The activities of this great war machine were directed by Colonel H. L. Abbot , of the First Connecticut Heavy Artillery. Other photographs of it, with officers and men, are shown on pages 186 and 187, Volume III.
...
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.