Attorney Profiles

William G. Mahoney

Highsaw, Mahoney & Clarke, P.C.
4142 Evergreen Drive
Fairfax, Virginia 22032-1018

Communication Center

Phone: (202) 296-8500
Fax: (202) 296-7143
Web site:

Representative Clients
Areas of Practice
Published Works
Representative Cases
Bar Admissions

Mr. Mahoney is a co-founder of this firm and has been of counsel since July 1998. He has represented railroad and airline labor unions before state and federal courts, including the Supreme Court of the United States, and administrative agencies. He has also represented those unions before the U.S. Congress and State Legislatures in the preparation of proposed legislation and in testimony in support of and in opposition to proposed legislation, including most major railroad legislation by Congress in the last half of the Twentieth Century.

Current Employment Position(s):

Co-Founder of Firm in 1970; Of Counsel Since 1998

Year Joined Organization:


Areas Of Practice:

Railroad Labor Unions
Airline Labor Unions

Bar Admissions:

District of Columbia, 1950
U.S. Supreme Court, 1961


Notre Dame Law School, Notre Dame, Indiana, 1950
J.D., Juris Doctor
Honors: Cum Laude

Published Works:

The U.S. Short Line Railroad Phenomenon (With Professor Paul S. Dempsey), Transportation Law Journal, University of Denver College of Law, Vol. 21, No. 2, 1993

The Interstate Commerce Commission/Surface Transportation Board as Regulator of Labor's Rights and Deregulator of Railroads' Obligations: The Contrived Collision of the Interstate Commerce Act with the Railway Labor Act, 24 Transportation Journal 241, 1997

The Future of Railroad Labor-Management Relations as an Industry of Five, or Three, or Two Mega-Railroads Enter the Next Millennium, 26 Transportation Law Journal 341, 1999

Representative Cases:

RLEA v. United States, 379 U.S. 199 (1964)
Norfolk and Western Ry. Co. v. American Train Dispatchers Ass'n, 499 U.S. 117 (1991)

Representative Clients:

Transportation Trades Department, AFL-CIO

Professional Associations and Memberships:

The Bar Association of The District of Columbia

American Bar Association

The Barristers

Birth Information:

October 5, 1925, Washington, District of Columbia
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