The subject matter of "Bealeton, Va. Drum Corps, 93d New York Infantry (U.S. Civil War)" refers to a military drum corps that was part of the 93rd New York Infantry Regiment during the United States Civil War. This particular drum corps is associated with Bealeton, Virginia, where they may have been stationed or performed. The 93rd New York Infantry Regiment was one of many regiments raised for the Union Army in response to the secession of southern states. The drum corps played an integral role in military life, providing rhythm and morale during marches, parades, and on the battlefield. This historical artifact serves as a reminder of the music, camaraderie, and discipline that accompanied the American Civil War.