After college, Bowdoin spent several years traveling and then entered the banking business, clerking as a lawyer for four years at
Winslow, Lanier & Co. He joined J. P. Morgan & Co. in January 1891 and, two years later, was made a partner and put in charge of monitoring the firm's books, which he did until his death in 1914. He was in charge of the accounting business of J.P. Morgan & Company. Bowdoin was connected to Morgan for 25 years and a partner for 15 years. In his will, he left all the employees of Morgan & Co. in New York and of Drexel & Co. in Philadelphia one month's salary, and those who had been in his personal service for a year or more, one year's salary.
Social activities He belonged to
The Metropolitan Club,
University Club of New York,
New York Yacht Club,
Union Club of the City of New York, St. Anthony Club, Tennis Ardsley Club,
Baltusrol Golf Club, and the Automobile Club of America. In 1892, Bowdoin was included in
Ward McAllister's "
Four Hundred", purported to be an index of New York's best families, published in
The New York Times. ==Personal life==