Judge Sarah T. Hughes(August 2, 1896 – April 23, 1985)

Sarah Tilghman Hughes was an American lawyer and federal judge who swore in Lyndon B. Johnson as President of the United States on Air Force One after the assassination of President John F. Kennedy. She is the only woman in U.S. history to have sworn in a United States President, a task usually executed by the Chief Justice of the United States. She moved to Dallas, Texas, in 1922 with her husband, George Hughes, whom she had met in law school. She practiced law for eight years in Dallas before becoming involved in politics, first being elected in 1930 to three terms in the Texas House of Representatives.
In 1935, she accepted an appointment as a state judge from Gov. James Allred for the Fourteenth District Court in Dallas, becoming the state's first woman district judge. In 1936 she was elected to the same post. She was re-elected six more times and remained in that post until 1960. In 1961, President Kennedy appointed her to the United States District Court for the Northern District of Texas. She was the first woman to serve as a federal district judge in Texas.

Taken aboard Air Force One by Kenneth T. Walsh, White House correspondent for U.S. News & World Report, this photo of Judge Hughes administering the oath of office to Lyndon B. Johnson remains one of the most famous photos ever.