In 1868 he penned a series of letters to the Buffalo Commercial Advertiser, in which he attacked Robert Ould, the former Confederate Commissioner for the exchange of prisoners of war.

His brother Jonathan stood in his time in the front rank of the Baltimore Bar with such men as William Pinkney, Reverdy Johnson and others.

[1] On either April 9,[2] or 25,[1] 1861, he was appointed Colonel of the 10th Pennsylvania Volunteers, his first commission;[2] and served for some three months under the command of General Patterson, at which time the term for which the regiment was enlisted expired.

[1] He was shortly after appointed to the command and organization of Camp Curtin, at Harrisburg, where, in the course of four months, he superintended the drill, disciplining, equipment and forwarding of twenty or thirty thousand troops to the seat of war.

[1] About August 1, 1863,[2] he succeeded Colonel William H. Ludlow as Commissioner for the exchange of prisoners of war, and subsequently served as president of the Court Martial at St. Louis, Missouri.

[1] For about a week or ten days he had complained of a pain or troublesome feeling in the region chest, accompanied by some difficulty of respiration, but no apprehension of a serious result was felt, and he was not disabled from attending to business.

[1][2] On Saturday morning, after calling upon his physician, the General proceeded to his own office, where he remained as usual until about 2:30 pm, at which time, his wife coming for him with the family carriage, he returned to his residence, 167 10th Street.

[1][2] He walked out on the verandah for a few moments, and returning seated himself upon a sofa in the library, where, by the bathing of his feet in hot water and the application of mustard paste, some relief was given.

Col. Meredith, who subsequently earned the yellow sash, was one of that large body of gallant men who volunteered to remain after their term of service bad expired, to hold for the federal government that old battle ground of nature where the river of swans, reinforced by the Shenandoah, bursts through the Blue Ridge.