The Ninth Regiment of Infantry was organized at Baltimore, Md., in June and July, 1868, to serve for a period of six months, in accordance with the proclamation of the President of the United States, dated June 15, 1863, calling for additional troops to re- pel the Confederate Armies then invading Maryland and Penn- sylvania. All of the companies were recruited in Baltimore City, excepting Company I, which was raised in Baltimore County. This regiment consisted of nine companies.
On the 6th day of July, 1863, before its organization was completed, the 9th Regi- ment left Baltimore with instructions to join the Union Army, then operating in Western Maryland. It was assigned to General French's Division and took part in the movement that drove the enemy from Maryland Heights.
The 9th Regiment subsequently crossed the Potomac River at Harper's Ferry, and occupied Louden Heights, Va.
Subsequently Company B was stationed at Duffield, and Company C at Brown Crossing, to protect the Baltimore & Ohio Railroad. Company B was then ordered to Harper's Ferry, Va., and performed provost duty, being relieved by Company A.
About the middle of August, 1863, Companies D, E, F, G, H and I were ordered to occupy Charlestown, Va., and remained thereat until October 18, 1863, when they were attacked by the enemy, under General Imboden, with a brigade of mounted infantry, with Major Harry Gilmor's Battalion of Maryland Cavalry (Confederate) and a battery of artillery.
The regiment made a gallant stand, but were speedily surrounded by an over- whelming force and captured.
Of the number captured not more than one-half ever returned to their homes, but perished by reason of the hardships and privations experienced in Southern prisons. Companies A, B and C continued on duty in Virginia until the expiration of their term of service, when they proceeded to Baltimore and were duly mustered out of the military service February 24, 1864.
The 9th Regiment incurred death casualties as follows, viz.: Killed in battle, two (2) enlisted men; died of wounds, disease, etc., one hundred and twenty-four (124) men; or a total death list of one hundred and twenty-six (126) men.
History courtesy of the Archives of Maryland Online - 9th Maryland Infantry, USA