Landscape architect. He apprenticed with Warren Manning, an associate of Frederick Law Olmsted, and studied at Harvard but left in 1938 without graduating. He executed over 1,000 projects, among the most well-known are the Gateway Arch in St. Louis (with Eero Saarinen), the grounds for Rockefeller University, Lincoln Center and the external and internal landscape design for I. M. Pei’s East Building for the National Gallery of Art in Washington, DC. He also executed the landscape design for Breuer’s addition to the Scott House, though Breuer found his rates exorbitant.