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:

...865. First Lieutenant, Assistant Surgeon, 26th Mass. Infantry, Mar. 16, 1863. Discharged, June 11, 1864. First Lieutenant, Assistant Surgeon, 11th Mass. Infantry, June 13, 1861. Major, Surgeon , Apr. 23, 1862. Major, Surgeon, U. S. Volunteers, Mar. 26, 1863. See U. S. Army. First Lieutenant, Assistant Surgeon, 50th Infantry, M. V. M., in service of the U. S., Nov. 11, 1862. D...
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