Statistics for occurrence #1 of “Belle Plain” in chapter 20 of John D. Billings, Hardtack and Coffee: The Unwritten Story of Army Life:

...e trains, or for regulating the camp duties as in artillery and cavalry. It seems strange that so commendable a proposition was not thought of at the time. In 1863, while the army was lying at Belle Plain after the memorable Mud March, large numbers of colored refugees came into camp. Every day saw some old cart or antiquated wagon, the relic of better days in the Old Dominion, unloading its freight...
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Entity Corpus Doc Corpus Doc  
Belle Plain (Texas, United States) 218 4 0 0 0 user votes

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