[1] In 1898, his father purchased the former Callender estate on Narragansett Avenue in Newport, Rhode Island from Mrs. Frances Ogden.

[1] After his graduation, Haven returned to New York City to enter the Lehigh & Wilkes Barre Coal Company.

Following in his father's footsteps, Haven became interested in railroads, his next job being secretary and treasurer of the St. Paul & Duluth and New York and Northern Railways.

[1] In 1896, Haven joined the firm Strong, Sturgis & Company, whom he represented on the New York Stock Exchange.

[10] Through the Metropolitan Opera, Haven became associated with such prominent New Yorkers as George F. Baker, J.P. Morgan, Otto H. Kahn and Robert F.

He retired from business and began traveling in hope of regaining his health, but on July 21, 1925, Haven shot himself through the head with a revolver, at his home on Fifty-third Street, New York City.