[3] After his graduation from law school, Alexander joined Davis, Polk, Wardwell, Gardiner & Reed in New York City, where he was made partner at age 32.
[1] In his role as CEO, Alexander broke from Morgan's established model of eschewing the solicitation of new business, instead training and stationing a group of employees known as "bird dogs" around the United States to pursue clients.
[1] Alexander served as vice chairman of the United States Strategic Bombing Survey in Europe during World War II and earned a Medal of Merit for his service.
[6] In addition to his career in banking, Alexander served of the board of directors of General Motors, the American Viscose Corporation, and Standard Brands.
He was a trustee on the boards of Presbyterian Hospital, Vanderbilt University, the Metropolitan Museum of Art, and the Alfred P. Sloan Foundation.