President Theodore Roosevelt wore a ring containing a lock of Abraham Lincoln's hair when he was inaugurated in 1905. The hair had been cut by Dr. Charles C. Taft, one of the attending physicians the night of the assassination. The hair was purchased by John Hay on February 9, 1905, and was given to Roosevelt less than a month later. In his Autobiography, Roosevelt wrote, "When I was inaugurated on March 4, 1905, I wore a ring he (John Hay) sent me the night before, containing the hair of Abraham Lincoln. This ring was on my finger when the Chief Justice administered to me the oath of allegiance to the United States."
