John Glenn of the Mercury Seven. Glenn resigned from NASA in January 1964. He planned to run for a U.S. Senate seat from Ohio, but an injury in February 1964 forced his withdrawal. He retired from the Marine Corps the following year. He lost a close primary election in 1970. A member of the Democratic Party, Glenn first won election to the Senate in 1974 and served for 24 years until January 1999. In 1998, while still a sitting Senator, Glenn flew on the "Discovery" space shuttle's STS-95 mission, and became the oldest person to fly in space and the only person
John Barnwell (senator) Senate from 1778 until his death. He was elected to the Confederation Congress in 1784 but did not attend. He was a member of the state convention to ratify the United States Constitution in 1788. In 1795, he was elected to the 4th United States Congress but declined to serve. Barnwell County, South Carolina, is named for him, or possibly his brother Robert Barnwell or his grandfather John Barnwell. Other relatives include Robert Woodward Barnwell and Senator Robert Barnwell Rhett. John Barnwell (senator) John Barnwell (July 15, 1748 – August 27, 1800) was a soldier and public official from South