A Portrait and Biographical Record of Hendricks County (Chicago: A.W. Bowen & Co., 1895)--page 1064
I.N. Brent, M.D., of English descent, is prominent among the physicians of Hendricks, and more particularly so in Middle Township. His great-grandfather, Santford Brent, was a member of one of the first families of Virginia, was a defender of American rights in the Revolutionary War, and was quite active as a politician. William Brent, grandfather of Dr. I.N. Brent, was also a native of the Old Dominion, but was an early settler of Washington County, Ky., where he for a time resided in a block house, and took part in many a contest with the Indians. His son, Santford Brent, was born in Washington County, in December, 1800, was a school-teacher for some years, and later became a student in the medical department of Transylvania University. He located for practice in Shelby County, Ind., where he made his visits altogether on horseback and supplied his patients with medicines, which he procured from Philadelphia, and treated the rich and poor alike and without discrimination. He married Nannie Scott, a daughter of William and Sarah Scott, and by her became the father of the following children: Levi, Elizabeth, William, Roland, Mary, Eliza, George, James, I.N., David T. and Hallie. In politics he was at first a Whig and later a Republican; his religion was that of the Presbyterian Church, in which he was an elder, and in the faith of which he died, in Henry County, Ind., April 15, 1892, having lost his wife in July, 1886.
Dr. I.N. Brent was born in Henry County, Ind., August 12, 1845, passed his early life on his father's farm, and for a few years was a school-teacher. He was educated in medicine at the Hospital Medical College, of Louisville, Ky., from which he graduated in 1875, and for two years practiced in Trimble County, Ky., and then selected his present location in Middle Township, Hendricks County, Ind., where he has reached great distinction in his profession. He has a first-class medical library and is a liberal subscriber to medical literature, and is a member of the Hendricks County Medical Society and of the Pittsboro Odd Fellows' lodge, in which he has passed all the chairs, and which he has represented in the grand lodge; although a Democrat in his proclivities, he does not take great interest in politics, but is a firm adherent of the M.E. Church, of which he is a trustee. He married Miss Tinie B. Quisenberry, daughter of Harvey and Sallie (Claxton) Quisenberry, of Kentucky, and she, also, is a devout Methodist.