At the final breaking of the lines in front of Petersburg, on the 2d of April, 1865, after charging the enemy's picket line and capturing two hundred and forty-nine prisoners during the night previous, he formed his brigade near Fort Sedgwick, in column by regiments, with three companies of pioneers in front armed only with axes to cut away the _abatis_. Just at daybreak, at a preconcerted signal, in connection with Gen. Hartranft on his right and Col. Curtin on his left, he led his column to the charge. Nothing could exceed the coolness and intrepidity with which officers and men pressed forward under a terrific fire of grape, canister, and musketry; for our artillery had opened and given the enemy warning. Tearing away the _abatis_, they dashed over the parapet, seized the guns, captured hundreds of prisoners, and held the line. The loss was frightful, but the backbone of the rebellion was broken; and when the news of the assault reached Richmond, on that Sunday morning, Jefferson Davis crept out of church and stole away, a fugitive; and Petersburg and Richmond were occupied by our troops next morning. For gallantry in that action Gen. Griffin was brevetted a major-general of volunteers, and succeeded to the command of the second division, ninth corps, holding that position till the close of the war, with the exception of a short time while he was president of an examining board of officers at Washington. He joined in pursuit of the rebel forces, and his division formed a part of the column that encompassed Lee and compelled him to surrender. Returning with the army and encamping at Alexandria, he led his division in the Grand Review, on the 23d of May; and when the last regiment of his command had been mustered out, he also, in August, 1865, was mustered out of the service of the United States. Gen. Griffin's service had been a most honorable one. Brave, able, and patriotic, he was always in demand at the front, and his service was of the most arduous kind. He took an active part in twenty-two great battles, besides being engaged in numberless smaller fights and skirmishes, and his troops were never under fire, or made a march of any importance, except with him to lead them. Yet he never received a scratch, although he had seven ball-holes through his clothes, and had two horses killed and five wounded under him in action; and he never lost a day's duty from sickness,--the result, no doubt, of temperate habits. As an example of the severity of his service in Grant's campaign of 1864, he left Alexandria with six regiments, reporting twenty-seven hundred fighting men. At the close of the campaign he had lost three thousand men, killed and wounded,--three hundred more than his whole number,--new regiments having been assigned to him, and the older ones filled up with recruits.