(1822 - 1870)
Home State: Maryland
Branch of Service: Staff
Unit: Archer's Brigade
Before Sharpsburg
He was a lawyer in San Francisco, CA before the War. He was appointed Lieutenant and aide-de-camp to General Archer on 13 June 1862.
On the Campaign
From General Archer's Report:
[at Sharpsburg] Captain R. H. Archer, my assistant adjutant-general, though not yet recovered from a severe illness; Lieutenant Thomas, aide, and Lieutenant [George] Lemmon, ordnance officer, rendered brave and efficient assistance, and charged with the troops upon the enemy ... [at Shepherdstown] Captain Archer and Lieutenants Thomas and Lemmon, of my staff, rendered valuable and efficient assistance.
The rest of the War
He was on court-martial duty in Richmond, VA while General Archer was a prisoner after Gettysburg. He was again on the General's staff in 1864, with no further military record after November 1864.
References & notes
Birth
1822 in MD
Death
09/23/1870; Elkton, MD; burial in Saint Georges Episcopal, Perryman, MD
1 Krick, Robert E.L., Staff Officers in Gray; A Biographical Register of the Staff Officers in the Army of Northern Virginia, Chapel Hill: University of North Carolina Press, 2003, pg. 284 [AotW citation 17586]