Admitted to bar, 1887, and began practice at New York. Authority on international matters. Counsel for foreign investing interests in the United States.
Active in Republican presidential campaign, 1896. 1st vice president New York Republican Company Committee, 1899. Commissioner of docks and ferries, New York, 1902-1903, carrying out the Chelsea improvement.
Bridge and tunnel commissioner State of New York, 1907-1928. Founder and 1st president French Institute in the United States, chartered by regents State of New York as a public educational institution. Chairman trustees French-American Chamber Commerce, Inc.
Chairman of the executive committee Museum of French Art, New York. Chairman of the Board Entente France-America, French Union. Member Executive Committee French-American Medical, Chemical and Physics Society.
Trustee John Sanford Saltus Foundation, American Foundation for Safeguard of French Art. Commander Legion of Honor (French). Commander Order of Morocco, Order of Cambodia (French).
Commander Order of Crown (Rumanian).