stands on the field of their hardest fight, that of the first day at Gettysburg, where they lost their gallant corps commander, Gen. John F. Reynolds. And on the second day of that battle, toward evening, they were sent to reinforce Sickles on the left, in whose corps was the 1st Massachusetts. Once more the Boston Artillery and the Roxbury Artillery were serving side by side. On May 18, 1861, just one week before the 1st was mustered into Federal service, it lost another company. Capt. Joseph H. Barnes had organized a new 7th Company to fill the place made vacant by Capt. Sampson’s withdrawal. But the example of his predecessor proved contagious; so that presently the new company followed the old one. Capt. Barnes’ command joined the 4th Mass. Infantry at Fort Monroe, and so found active work immediately. When, however, the 4th presently came home, its new Co. K was left behind, and became incorporated in the 29th Regiment, with which it served three years. In 1862 the 29th was with the army of the Potomac, in 1863 in Mississippi and Tennessee, and again with the army of the Potomac in 1864. Capt. Gardner Walker’s North End True Blues eventually went with Col. Cowdin as the 7th Company. Lieutenant Colonel Isaac S. Burrell was not able to accompany his regiment in the three-years’ service. Remaining in Boston with a few other members who were similarly situated, he maintained a skeleton organization of the old militia regiment. And because the new number, 1st, was borne by Col. Cowdin, Col. Burrell had to hunt another designation for his command. The fourteen officers and two hundred sixteen men, in seven companies, who were engaged in this home-guard duty were by no means satisfied with their position. Their hearts were in Maryland and Virginia with their former comrades. In the spring of 1862 Banks was driven from the Shenandoah valley and the north began to fear for the safety of Washington. On May 26, in response to requests from the Secretary of War, Massachusetts and other northern states mobilized their militia, recruiting the regiments up as nearly as possible to full strength. This alarm subsided presently. But Pope’s defeat at second Bull Run, August 30, left the capital in genuine peril, and caused a hasty call for 300,000 more troops, to serve nine months. Grave disaster had overtaken the Union arms, and there was immediate need for reinforcements. Col. Burrell was in militia camp at Medford with his regiment when the call came; and at once volunteered. Indeed this was just the chance for which they had been waiting--active duty but for a period not so extended as three years.