This guy is not in my direct line but I found some info on him so am sharing it here.
Col. James Chamberlin was born Jun 27, 1836 on his father’s farm at Chamberlin Mills in White Deer Township, Union Co., Pennsylvania.
James married Adelaide Stokes Nichol on February 12, 1868, in Nashville, Tennessee. She was the daughter of James Nichol and Adelaide McCulloch.
Col. James Chamberlin was a native of Pennsylvania and had resided in this city since the war. Col. James Chamberlin died at the residence of his son, James N. Chamberlin, 1206 Eighth Avenue, N. at 9:40 o’clock this morning at the age of 73 years. He had been in bad health for two or three years, and for most of that time had been living a retired life. His death was due to the infirmities of old age.
Col. Chamberlin has ever since the Civil War been a citizen of Nashville and a member of the local bar. He was a Pennsylvanian by birth and served with distinction in the Federal Army.
Col. Chamberlin was a man of highest honor and recognized ability. He was not only regarded as one of the leading citizens among the German population of Nashville, but he was held in high regard by all classes, being universally respected for his strict integrity, his exactness and care in the small as well as the larger duties of life and for his high moral character. He was best known, of course, among the older citizens and his large circle of friends, as well as his many kinspeople here, deeply deplore this death. He was a member of the Odd Fellows, Aurora Lodge.
Col. Chamberlin was, under the old regime a member of the Nashville City Council from the Ninth Ward, being elected as a Republican but never held any other public office, refusing more than one occasion to be a candidate for judicial and other honors. Col. Chamberlin was born in Union County, Pa., June 27, 1836. After his preliminary education he entered the Harvard University law department, graduating there in July 1859. One year later he graduated in the classical department of the University at Lewisburg Pa. In the fall of 1860 he began the practice of law at Lewisburg, Pa. When the Civil War began he enlisted in the Federal Army on President Lincoln’s first call for troops as First Sergeant in the 4th Pa. Volunteers, this company being commanded by his brother, J. W. Chamberlin. He was honorably discharged upon the expiration of the service of the Regiment, three months later, and returned to Lewisburg, where he recruited a company to serve three years. He was made Captain of Company D., 52nd Pa. Volunteers, serving throughout the campaign of 1862, under Gen. McClellan. He was wounded at Seven Pines. Later his regiment participated in the first attack on Charleston, SC. Later he was made Col. of the 28th Pennsylvania Militia Infantry, one of the regiments formed to repel Gen. Lee’s army in Pa., serving until Jul 2, 1863, when he was mustered out. Col. Chamberlin came to Nashville in October, 1863, and started legal practice with Mr. D. F. Wilkin. He was soon afterwards commissioned by Gov. Curtin Lt. Col. on his staff and Military Agent for Pa. in the Department of the Southwest, at Nashville, holding this office until March 19, 1866, when he resigned. His duties were to care for the sick and wounded, distributing clothing, food, medicines and other supplies. When he closed his office as Military Agent, he entered into partnership in the practice of law in this city with Mr. Wilkin, this partnership continuing during the remainder of his life, although Col. Chamberlin retired from active life about two year ago on account of failing health. Col. Chamberlin was married in Feb. 1868 to Miss Delia S. Nichol, of Nashville, the daughter of the late James Nichol. His wife and six children survive; Mrs. William. Joslin of Auburn, TN, William. H. Chamberlin of Albuquerque, NM, James W. Chamberlin, Mrs. A.H. Card, Mrs. N.P. Fritz and Miss Lucy Chamberlin, of Nashville. He is also survived by two brothers and two sisters, Thomas F. Chamberlin of Philadelphia; Robert Chamberlin of Bloomington, IL; Mrs. Sallie Eccleston of Buenos Aires, So. Am., and a sister who resides in Brooklyn, NY.
He died July 26, 1909.
Old Nashville Cemetery