The Dean of the United States House of Representatives is the longest continuously serving member of the House. The current Dean is Don Young, a Republican Party U.S. Representative from Alaska, who has served since 1973 and is the first Republican Dean in more than eighty years, as well as the first from Alaska. Additionally, with the death of John Conyers, Young is currently the only living Dean of the U.S. House of Representatives. The Dean is a symbolic post whose only customary duty is to swear in a Speaker of the House after they are elected. This responsibility was first recorded in 1819 but has not been observed continuously – at times, the Speaker-elect was the current Dean or the Speaker-elect preferred to be sworn in by a member of his own party when the Dean belonged to another party. The Dean comes forward on the House Floor to administer the oath to the Speaker-elect, before the new Speaker then administers the oath to the other members.
This is an incomplete list of lists pertaining to the United States Congress.