Milton Young (R-N.D.)
strongDates of service:/strong Mar 12, 1945 to Jan. 2, 1981
strongYears of service:/strong 35 years, 9 months, 22 days
strongSource:/strong a href=â€http://www.senate.gov/senators/Biographical/longest_serving.htmâ€United States Senate/a
Secretary of State Henry Kissinger, left, chats to Senator John L. McClellan (D-Ark.), center, and Senator Milton Young (R-N.D.), during a White House in Washington, Mar 24, 1975. Young died on May 31, 1983 during a age of 85. (AP Photo)