18th Pennsylvania Infantry
(3 Months 1861)












Field & Staff

Organized at Philadelphia and mustered in April 24, 1861. At Washington Square, Philadelphia, Pa., until May 14. Moved to Baltimore, Md., and duty near Fort McHenry until May 22, and at Federal Hill until August. (Cos. "W" and "K" at Pikesville Arsenal removing stores to Fort McHenry June 12 to July 23.) Companies "B," "C," "D," "E," "G," "H" and "K" and part of "I" reenlisted for ten days at the request of General Banks. Mustered out August 6, 1861.

Officers were elected in 1858, who were commissioned for a period of five years, and upon the re-organization in April, 1861, the same officers were mustered into the service of the United States:

  • William D. Lewis, Jr., of Philadelphia, Colonel
  • Charles Wilhelm, of Philadelphia, Lieutenant Colonel
  • Alexander E. Newbold, of Philadelphia, Major
  • Thomas F. G. Cooper, Adjutant
The regiment went into camp at Washington Square, where it was drilled as light infantry. The discipline was good, and the men soon acquired a commendable degree of proficiency in military duty. They were bountifully supplied by their friends with all articles necessary for their immediate subsistence and comfort.

On the 14th of May, orders were received to move to Perryville, Maryland, where it arrived at two o'clock on the morning of the 15th, and immediately embarked on steamer for Locust Point. On its arrival it proceeded to the neighborhood of Fort M'Henry and encamped, where it remained engaged in drill and guard duty until the 22d of May, when it marched to Federal Hill, in the city of Baltimore.

The monotony of camp life was little varied during the remainder of its term of service. The line of duty was of such a character, that guard and military police were the chief of the services rendered.

On the 12th of June, companies B and K, under the command of Captain Peter Fritz, were detached from the regiment, and ordered to garrison the National Arsenal at Pikesville. Making a hurried march of sixteen miles, they reached the Arsenal at eleven o'clock P. M. the same day, and for three weeks were constantly employed in packing and removing to Fort M'Henry all the government property there stored. Remaining at the Arsenal until the 23d of July, they rejoined the regiment.

At the expiration of the term of service, Major General Banks, then in command at Baltimore, requested the men to re-enlist for a period of ten days. Companies B, C, D,, G, H, K, and a part of company I complied, and were re-mustered into the United States service by Captain Miller on the 24th of July.

On the 29th the regiment was relieved by the Fifth New York, and proceeded to Philadelphia, where, on the 7th of August, it was mustered out of service.

Source: Bates, Samuel P. History of the Pennsylvania Volunteers, 1861-65, Harrisburg, 1868-1871.

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