The Washington Post records today that Jim McCune ("Gentleman Jim") died on 3/19/13. The obituary is here. Key excerpt related to Tax Division:
His legal career began at the Department of Justice in 1961 working first in the Administrative Division and later in the Tax and Civil Rights Divisions. Working under Robert Kennedy during the Civil Rights Movement, Jim was part of the drive to implement the Voting Rights Act of 1964 and instrumental in the Natchez Mississippi School Desegregation Case. He joined the U.S. Army as a Judge Advocate General Officer and served for 30 years.
Also:
In lieu of flowers, memorial donations to CentralVirginia.JDRF.org are appreciated by the family. Condolences may be offered to the family at www.hollomon-brown.com