At an early age the young heir was sent to college, to the Pennsylvania University at Philadelphia, then the most famous seat of learning for those parts. Here he graduated with distinguished honors, at the age of seventeen. Among his classmates and intimate friends were Mr. William M. Meredith, of Philadelphia; Benjamin Gratz, of St. Louis, and the father of Mr. Mitchell, the author of Ike Marvel. Returning to Maryland, Thomas King Carroll began the study of law with Ephraim King Wilson, who had been named after Sir Thomas King. He was the father of the late United States Senator for Maryland. His studies being completed, arrangements were made to associate him as partner with Robert Goodloe Harper, the son-in-law of Charles Carroll, of Carrollton, in his lucrative law practice, and a house was engaged for his future residence in Baltimore. During the studies of Thomas King Carroll, his aged grandfather, Sir Thomas King, having died, Colonel Henry James Carroll and his family were residing at Kingston Hall and managing the estate for the young heir. An old friend of the family was Dr. Henry James Stevenson, one of the prominent physicians of Baltimore. Dr. Stevenson had come over formerly as a surgeon in the British army. He had married in England Miss Anne Henry, of Hampton. Settling in Baltimore, he acquired a large estate, then on the outskirts, now in the center of Baltimore. On Parnassus Hill he built a very spacious and handsome residence. During the Revolutionary War Dr. Stevenson remained loyal to his British training and was an outspoken Tory. The populace of Baltimore were so incensed against him that they mobbed his residence, threatening to destroy it. The Doctor showed his military courage by standing, fully armed, in his doorway and threatening to shoot the first man who attempted to enter. The mob were so impressed by his determined attitude that they finally retired, leaving the owner and his property uninjured. Dr. Stevenson afterwards became much beloved through his devotion and care, bestowed alike on the wounded of both armies. He became noted in the profession from his controversy with Dr. Benjamin Rush, of Philadelphia, the one advocating and the other opposing inoculation for small-pox. Dr. Stevenson was so enthusiastic that he gave up, temporarily, his beautiful residence as a hospital for the support of his theory. An ivory miniature in a gold locket, now in possession of Miss Carroll, represents Dr. Stevenson in his red coat and white waistcoat, and at the back of the locket there is a picture of Parnassus Hill, crowned by the Doctor's residence, with a perpendicular avenue straight up hill, and a negro attendant opening the gate at the foot for Dr. Stevenson, mounted on his horse and returning home. It is a very quaint and valuable specimen of ante-revolutionary art.