BOSTON (May 7, 2002) – OneBeacon Insurance Group announced today that Carey Benson has been named President and CEO of its AutoOne Insurance subsidiary. Alvin Kaltman was appointed nonexecutive Chairman. Benson reports to John Cavoores, OneBeacon President and Chief Operating Officer.

BOSTON (March 29, 2002) - OneBeacon Insurance Group announced today that Chuck Chokel has joined the company as a Managing Director. He will report to Ray Barrette, OneBeacon Chairman and Chief Executive Officer, who explained that Chokel will be a "minister without portfolio or boundaries" for the

HAMILTON, Bermuda, March 1, 2002 – At its regular meeting held on February 28, 2002, the Board of Directors of White Mountains Insurance Group, Ltd. declared a $1.00 per share annual dividend, payable in cash on March 27, 2002, to holders of Common Stock of record as of the close of business on

HAMILTON, Bermuda, March 1, 2002—The Board of Directors of White Mountains Insurance Group has elected Jack Byrne as its Chief Executive Officer. Until recently, Byrne had been serving as Chairman of the Boston-based OneBeacon Insurance Group. OneBeacon, which is a wholly-owned subsidiary of White

HAMILTON, Bermuda, February 20, 2002 - White Mountains Insurance Group, Ltd. ended 2001 with a fully converted tangible book value per share of $226 (which includes net deferred credits), an increase of $38, or 21% (including dividends), from December 31, 2000.

BOSTON (December 19, 2001) – OneBeacon Insurance has announced new responsibilities for three senior managers and an addition to the management team. Larry Haefner, formerly Chief Actuary, is now Managing Director, Specialty Operations. Reporting to President and COO John Cavoores, Haefner is

Hamilton, Bermuda, December 14, 2001 – White Mountains Insurance Group, Ltd. (NYSE symbol: WTM) and the Benfield Group plc are pleased to announce the formation and commencement of operations of Montpelier Re Holdings Ltd., and its wholly owned subsidiary Montpelier Reinsurance Ltd., a Bermuda

HAMILTON, Bermuda, December 11, 2001 - White Mountains Insurance Group, Ltd. announced today that it's newly formed subsidiary, FUND AMERICAN REINSURANCE COMPANY, LTD. (Hamilton, Bermuda), has entered into a definitive agreement (pending receipt of the necessary Bermuda reinsurance license) to

HAMILTON, Bermuda, December 4, 2001 – The board of directors of White Mountains Insurance Group, Ltd., announced the election of Mark J. Byrne to the board of directors. Mark Byrne manages West End Capital Management Limited, a Bermuda investment management firm engaged primarily in fixed income

BOSTON, MA - December 3, 2001) - OneBeacon Insurance Group, a wholly owned subsidiary of White Mountains Insurance Group, Ltd. (NYSE: WTM), today announced that Ray Barrette has been elected Chairman and John Cavoores President and Chief Operating Officer.