Mary L. Walker
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Mary Walker (born December 1, 1948) is an American lawyer who served as a high-ranking appointee under Presidents Ronald Reagan, George H.W. Bush and George W. Bush.
Mary L. Walker was born in Dayton, Ohio on December 1, 1948.[1] She was educated at the University of California, Berkeley, receiving an A.B. in Biological Sciences in 1970.[1] She then attended both UCLA Law School and Boston University School of Law, receiving a J.D. in 1973.[1]
Walker joined the legal department of the Southern Pacific Transportation Company in San Francisco in 1973.[1] She worked there until 1976 when she joined the law firm of Richards, Watson, Dreyfuss & Gershon in Los Angeles.[1] She was made a partner in 1979, working there until 1982.[1]
In 1982, Walker accepted an appointment in the United States Department of Justice as Principal Deputy Assistant Attorney General in the Land and Natural Resources Division.[1] From 1984 to 1985, she was the Deputy Solicitor of the United States Department of the Interior.[1] On September 18, 1985, President of the United States Ronald Reagan nominated her to be Assistant Secretary of Energy (Environment, Safety, and Health).[1] She was confirmed by the Senate and held this office until 1988.[2]
She spent 1988-89 as Vice President of Law Environmental Inc.[2] She was a partner at Richards, Watson & Gershon and their managing partner in San Francisco from 1989 to 1991.[2] She was a partner of Luce, Forward, Hamilton & Scripps in San Diego from 1991 to 1994, and then a partner at Brobeck, Phleger & Harrison in San Diego from 1994 to 2001.[2]
She was also a U.S. Commissioner on the Inter-American Tropical Tuna Commission from 1988 to 1995, a Presidential Appointment.[2]
An evangelical Christian, Walker co-founded the Professional Women's Fellowship in San Diego, a group related to Campus Crusade for Christ.
On September 26, 2001, President George W. Bush nominated Walker to be General Counsel of the Air Force. She was confirmed by the Senate and held this office for the duration of the presidency of George W. Bush. As of 2009, she is the longest-serving General Counsel in the history of the Department of the Air Force. During her tenure there, she received many awards for her service.

Post-government career
Walker returned to private practice in 2009 and, as an independent contractor, provides legal services to private clients and law firms.[3]