Statistics for occurrence #1 of “Jersey City” in year 1861, month October, day 20 of Rebellion Record: a Diary of American Events, Diary from December 17, 1860 - April 30, 1864:

...r, Smith, and Hancock accompanied the expedition.--National Intelligencer, October 21. The Sixth regiment of Vermont Volunteers, under the command of Colonel Nathaniel Lord, Jr., passed through Jersey City , N. J., en route for Washington. The regiment numbered one thousand and fifty men.
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