President Pro Tempore: David Davis
Party Conference Chairmen: Shelby Cullom, Scott W. Lucas
Majority and Minority Leaders: Everett M. Dirksen, Scott W. Lucas
Party Whips: J. Hamilton Lewis, Scott W. Lucas, Everett M. Dirksen; Richard Durbin
Standing Committee Chairs Since 1947:
- Foreign Relations: Charles A. Percy
- Rules and Administration: C. Wayland Brooks
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