He was educated in the city schools of Baltimore, he began architectural study under private tutors, and completed his training in Paris.
Returning to New York in 1889 Mr. Hiss started professional practice. At one time he was associated with E. Hobart Weekes, but mainly worked alone. Among the buildings he designed under his own name or with associates was the New York s Hotel Gotham; Church of Bethseda by-the-Sea at Palm Beach, Florida, Byers Hall, Yale University, and Belmont Apartments, New York. In addition he was architect of a number of residences in New York, country houses on Long Island, and participated in Housing Projects in Bridgeport, R. I.