Statistics for occurrence #1 of “Petersburg, Va.” in chapter 90 of Thomas Wentworth Higginson, Massachusetts in the Army and Navy during the war of 1861-1865, vol. 1, Mass. officers and men who died.:

...Ford, Va.,July 18, 1861. Simpson, Thomas, Sergt.,3d Mass. Cav.,Winchester, Va.,Sept. 19, 1864. Simpson, William,33d Mass. Inf.,Lookout Mountain, Tenn.,Oct. 29, 1863. Sins, Andrew T.,4th Mass. Cav., Petersburg, Va. ,June 9, 1864. Sinclair, Charles H.,21st Mass. Inf.,New Berne, N. C.,March 14, 1862. Sitterly, John J.,31st Mass. Inf.,Port Hudson, La.,May 25, 1863.
...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
† Petersburg, Va. (Virginia, United States) 3,884 834 1,976 834 0 user votes
Petersburg, Va. (West Virginia, United States) 13 0 13 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.