Statistics for occurrence #1 of “Maryland” in chapter 1.5 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 7: Prisons and Hospitals.:

...complete roster from left to right as it was written on the photograph: J. F. Stone, First Maryland Cavalry; H. C. Florance, First W. Artillery; D. Kilpatrick, First W. Artillery; William Byrne, Cit. Maryland ; D. W. Slye, Cit. Maryland; Van Vinson, First W. Artillery; J. Black, Louisiana Guard; F. F. Case, First W. Artillery; G. W. Dupre, First W. Artillery; C. E. Inloes, First Maryland Cavalry; Edwin Har...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Maryland (Maryland, United States) 18,573 24 3 0 0 user votes
Maryland (Illinois, United States) 0 0 0 0 0 user votes
Maryland (Liberia) 0 0 0 0 0 user votes
Maryland (Louisiana, United States) 0 0 0 0 0 user votes
Maryland (Louisiana, United States) 0 0 0 0 0 user votes
Maryland (Louisiana, United States) 0 0 0 0 0 user votes
Maryland (New Jersey, United States) 0 0 0 0 0 user votes
Maryland (New York, United States) 0 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.