Statistics for occurrence #1 of “Major Giles B. Cooke” in chapter 3 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 10: The Armies and the Leaders.:

...ted States until or unless they were exchanged. This military medallion was devised by the photographer Rockwell during General Lee's stay in Richmond in April, 1865. These facts are furnished by Major Giles B. Cooke (No. 12, above), who had verified them by writing General Lee himself after the surrender. Late in March and early in April, the Federals made Lee's position untenable, and he pressed on to Amel...
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