History Lives Here
Architectural History
Architectural History
The mansion was built between 1917 and 1921 and is considered a severe and modern approach to the late Gothic Revival style of architecture.
The front facade of the two and one-half story building has medieval half-timbered rhythmical design across the upper stories, crenellated bays and Tudor arches, as well as strapwork ornament, yet all of these elements of Tudor-Gothic design have been subjected to a simplicity or severity of design that is a uniquely 20th century approach to the use of these traditional design motifs.
The construction is of poured concrete and steel and a rubble base of tile covered by stucco, and the house is built on a two-foot concrete foundation.
All wooden floors are anchored to timbers laid in concrete over masonry units supported by reinforced concrete beams. This quality of construction explains the fact that no settlement is discernable in the building. Downstairs floors are of walnut with walnut pegs, with the exception of the living room which has white oak flooring. Upstairs floors are of white oak. The house also features large rafters and panelling of walnut.
The house has a central heating system featuring recessed units behind decorative metal screens. It was originally steam-heated, but was converted from coal to gas heat in the 1930s. A vacuum system was built into the house, but it is no longer operable. There was also a buzzer system with a control panel in the kitchen, however it no longer exists. The pipes of the Aeolian organ are accommodated in the infrastructure of the house in four separate chambers.
Callanwolde’s Architect: Henry Hornbostel
Callanwolde was designed by noted architect Henry Hornbostel of Pittsburgh. Hornbostel, born in Brooklyn, New York, was classically trained at Columbia University in New York City and the Ecole des Beaux Arts in Paris. He began work in Pittsburgh in 1904 after winning the Carnegie Technical Schools Competition for the design of the campus that is now Carnegie Mellon University. He founded the Department of Architecture at Carnegie Tech, and, in addition to a private practice in Pittsburgh, he taught at Columbia University and was at various times a partner in the New York firms of Howell, Stokes & Hornbostel; Wood, Palmer & Hornbostel; Palmer & Hornbostel; and Palmer, Hornbostel & Jones. Although the bulk of his practice centered in and around Pittsburgh, Hornbostel executed projects throughout the country, including the campus plans of Carnegie Tech in Pittsburgh, Emory University in Atlanta, and Northwestern University in Evanston, Illinois; several bridges in New York City; and government buildings in Albany, NY and Oakland, CA.
One of the many enduring structures Henry Hornbstel designed was The Williamsburg Bridge (1903) in New York City. Connecting Manhattan to Brooklyn, and designed by Hornbostel and Leffert L. Buck, the 1,600 foot bridge took over seven years to complete. When the bridge opened in 1903, it was the first all-steel, large-scale suspension bridge built in the country –and the longest of its kind in the world. It remained the world’s longest suspension bridge until the 1920’s.
Hornbostel apparently met Howard Candler through a project for The Coca-Cola Company. In 1915, he designed the master plan for Emory University when it was relocated to Atlanta from Oxford, Georgia.
Hornbostel’s work, while drawing heavily on historic precedents of Gothic, Tudor, and Renaissance styles, foreshadows the beginnings of a modernist sensibility in its stripped-down use of forms and relative absence of ornamentation. In this, it represents a transitionary period between the academic classicism and gothic revival of the 19th century and the modernist movement of the 20th century.
The Henry Hornbostel Collection is housed in the Architecture Archives of Carnegie Mellon University’s Libraries. Drawings, Plans and other information about the original design of the Emory University Campus are maintained by the University Library’s Special Collections.