Trivial Trivia - taking trivia to new levels

[RJNorton]

During President-elect Lincoln's inaugural train ride crowds sometimes rushed to the train or procession to catch a glimpse of the newly elected gentleman from Illinois. In one city people were thrown down and trampled as Lincoln passed by in a procession. One man, Thomas Winton, got hit so hard that he sustained a broken bone. What bone did poor Thomas Winton break?