Judge William H. Arnoux, June 27, 1889. Actively identified with MacArthur Brothers Company, 1900, becoming vice president. Construction & Engineering Finance Company, MacArthur Brothers Limited company, United States Equipment Company, W. & A. MacArthur Limited company, West Coast Construction Company.
Treasurer MacArthur-Hanger Company In diplomatic service 4 years. Secretary United States Legation, at Madrid, Spain, 1897. Appointed special assistant secretary in office of Secretary of State, 1898.
Assistant secretary United States Commission that negotiated treaty of peace with Spain, 1898, and secretary to first Philippine Commission, 1899. Member American Industrial Commission to France, August-December 1916. Home: 175 E. 78th St., New York, New York Deceased.