Now, let's single out the "extreme" retirees--i.e., those were on the Court the longest and the shortest, and those who were the oldest and the youngest at retirement Then the "average" retirees--i.e., those who represent the average (or the median) time Justices remain on the Court, and who represent the average (or the median) age when they leave.
Here are the extremes:
(click to enlarge)
That's Justice John Paul Stevens, appointed by President Ford and the Court's last retiree, at one end of the range with the longest tenure among the recent retirees. His 34 1/2 years is one of the longest in Court history. (William O. Douglas, an FDR appointee, holds the record at 36 1/2 years.)
Justice Lewis Powell, the 3rd of President Nixon's 4 appointees, is at the other end with his 15 1/2 years being the briefest tenure among the last 10 retirees. (James F. Byrnes, the last of FDR's 9 appointees, holds the record with a mere 15 months.)
As for age at retirement, that's Stevens again at one end as the oldest--and, at 90, one of the oldest retirees in Court history. (Oliver Wendell Holmes, a TR appointee, was several months older--just a few weeks short of his 91st birthday.)
At the other end is President Bush 41's appointee, Justice David Souter, whose retirement at (nearly) 69 years of age makes him the youngest to retire among recent Justices. (Justice Benjamin Curtis, appointed by President Fillmore, was apparently the youngest to leave the Court. He resigned at the age of 47, appalled by the Court's decision in the Dred Scott decision, against which he authored a dissenting opinion.)
[I've summarized the time-on-the-Court and retirement age data for the last 10 retirees in a Table that's accessible HERE.]


