In addition to his teaching duties at the Law Center, Professor Oldham spends considerable time in London doing manuscript research in English legal history. His major work is The Mansfield Manuscripts and the Growth of English Law in the Eighteenth Century, two volumes, published by the University of North Carolina Press for the American Society for Legal History. An updated one-volume abridgement of this work was published by the UNC Press in the summer of 2004. In 2006, another book by Professor Oldham, Trial by Jury: The Seventh Amendment and Anglo-American Special Juries, was published by New York University Press. Professor Oldham collects books from and about early modern England and teaches Seminars at the Law Center on English Legal History and on the history of the jury. He also teaches Contracts, Labor Law, and Labor Arbitration. He specialized in labor law with the Denver firm of Sherman and Howard, and now serves as a Labor Arbitrator on several permanent panels. He is currently the Grievance Arbitrator for the National Hockey League and the NHL Players' Association, as well as the Permanent Umpire for Alcoa and the United Steelworkers of America. He is a member of the National Academy of Arbitrators and has served as chair of the Foreign Service Grievance Board at the State Department. He serves on the Board of Directors of the American Society for Legal History and on the editorial board of Law and History Review. He is the author of a student text, Labor Law, and has published numerous articles on legal history and on labor and employment discrimination topics.