Ms. Williamson was named a director in August 2018. Ms. Williamson served in various roles at Ernst & Young LLP ("EY") from 1974 to 1993 and 1998 to 2011, most recently as Senior Global Client Service Partner. Ms. Williamson was also EY's Americas Inclusiveness Officer, a member of its Americas Executive Board, which functions as the Board of Directors for EY dealing with strategic and operational matters, and a member of the EY U.S. Executive Board. Ms. Williamson serves as a director of Pentair plc and Cushman & Wakefield plc. During the past five years, Ms. Williamson served on the board of directors of XL Group Ltd., CSRA Inc., Janus Capital Group, ITT Exelis Inc. and Annie’s Incorporated. Ms. Williamson earned a B.B.A. degree in accounting from Southern Methodist University.