Statistics for occurrence #1 of “Doc” in year 1861, month May, day 8 of Rebellion Record: a Diary of American Events, Diary from December 17, 1860 - April 30, 1864:

...Boston Transcript, May 8. A meeting in aid of the volunteers from Roxbury, Mass., was held in that city. Speeches were made by Rev. J. E. Bartholomew, Edward Everett, and Alexander H. Rice.--( Doc . 145.) General Butler, at the Relay House, Md., promulgated special brigade orders concerning the several events that have occurred at the camp at that place since its formation.--(Doc. 146.)
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Doc 6,842 2,810 2 0 0 user votes
N. Y. Doc 1,108 0 0 0 0 user votes
Y. S. M. Doc 78 0 0 0 0 user votes
London Doc 4 0 0 0 0 user votes

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