Major Garland was promoted to lieutenant colonel on May 16, 1863, and to colonel and commander of the 1st Missouri Infantry on May 30, 1864.
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<ul><li>Johnson, John L. <i>The University Memorial: Biographical Sketches of Alumni of the University of Virginia Who Fell in the Confederate War: Five Volumes in One.</i> Baltimore: Turnbull Bros, 1871.</li></ul>