Statistics for occurrence #1 of “Brigadier-General C. A. Heckman” in chapter 7, page 232 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.:

...883, in Havana, Cuba. Created December 3, 1864, to consist of the colored troops of the Tenth and Eighteenth corps, Army of the James. Its commanders were Major-General Godfrey Weitzel and Brigadier-General C. A. Heckman . One division went with Terry to Fort Fisher; the others remained in Virginia, taking part in the final operations around Petersburg, and then formed the army of occupation in Texas.
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