Statistics for occurrence #1 of “Hempstead, Texas” in chapter 1.3 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 7: Prisons and Hospitals.:

...ated from all blame. The group of men gathered on the outside are mostly Union soldiers. The two most important prisons west of the Mississippi were Camp Ford, near Tyler, and Camp Groce, near Hempstead, Texas . The former was at first a Camp on a beautiful hill covered with trees, though a stockade was built later. Both officers and men were confined here, and there seemed to have been, during 1863 and...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Hempstead, Texas (Texas, United States) 54 5 26 3 0 user votes

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