Statistics for occurrence #1 of “Major, Surgeon” in chapter 5 of Thomas Wentworth Higginson, Massachusetts in the Army and Navy during the war of 1861-1865, vol. 2:

..., M. V. M., in service of the U. S., Sept. 12, 1862. Major, Surgeon, Apr. 10, 1863. Mustered out, June 18, 1863. First Lieutenant, Assistant Surgeon, 9th Mass. Infantry, Aug. 14, 1862. Major, Surgeon , U. S. Volunteers, Jan. 7, 1863. See United States Army. First Lieutenant, Assistant Surgeon, 32d Mass. Infantry, Aug. 15, 1863. Major, Surgeon, June 1, 1865. Mustered out, June 29, 18...
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