Early in the war, he became a brevet second lieutenant in the 2nd U. S. Artillery, a promotion dated October 22, 1862.
[1] The battery arrived with 120 men and 6 Napoleons, 12-pounder smoothbore guns; see Field artillery in the American Civil War.
[2] One man was wounded by an artillery round from the bombardment preceding Pickett's Charge that flew over the Union lines on Cemetery Ridge.
The battery's monument stands at the intersection of Hunt Avenue and the Baltimore Pike on the battlefield.
[3] Rugg continued to serve in the Union army through the autumn 1863 campaigns in Tennessee when the XII Corps was reassigned to the Western Theater.