Dr. Richard Dyer Mudd (January 24, 1901 - May 21, 2002), a centenarian, was the grandson of Samuel Mudd, the doctor who was convicted in aiding John Wilkes Booth upon the assassination of Abraham Lincoln.

Dr. Dick, as he was known to his family, worked throughout his life to try to clear his grandfather's name from the crime. His ultimate goal was to have the federal government refute the conviction made based on what he claimed was a lack of evidence that proved beyond a reasonable doubt that Samuel Mudd indeed treated Booth's broken leg after he shot the President.