After Harvard Jack served two years as a lieutenant in the Army and was happily stationed in Frankfurt, Germany, with his bride, Loretta. He joined Paine Webber Jackson & Curtis as a management trainee in 1964. Rising rapidly through the ranks, he became president of Paine Webber’s brokerage arm in 1980. 

Jack left Paine Webber in 1982 to join Baltimore securities firm Legg Mason, where he became instrumental in developing its highly regarded mutual-fund business. As vice chairman and chief administrative officer of Legg Mason, Jack acquired his moniker “Mr. Insider” and his reputation as a consummate manager and engaging leader. By his account, he “semi-retired” in 1998 and fully departed in 2008 after 36 years in the investment field. 

He and Loretta traveled extensively in the United States and Europe in the succeeding years. She, their three sons, and five grandchildren survive him and have our sincere sympathy.