In its early years the hotel had a stable attached on the Fifth Avenue side of the building.
The Wigwam Bar opened at the hotel in 1939 and contained images of the pilgrims and Native Americans.
[4] In 1949, the hotel was the headquarters of the National Council of the Arts, Sciences and Professionals.
[8] The female lead in Peter Link's Broadway musical Earl of Ruston (1971), Leecy R. Woods Moore, also temporarily lived at the property in 1971.
[2] After a $13 million renovation in 1997, Horn affiliated the Iroquois with Small Luxury Hotels of the World.