Jules Gabriel Henri de Sibour (December 23, 1872 – November 4, 1938) was a French architect who worked in Washington, DC.
Early life
He was born in Paris, France, to Vicomte Gabriel de Sibour and Mary Louisa Johnson of Belfast, Maine. He moved to the United States as a child.
He attended St. Paul's School in New Hampshire, then earned a degree from Yale University in 1896, where he was a member of Skull and Bones.
After working in New York for a time, he studied at the École des Beaux-Arts.
