Jules Henri de Sibour
Jules Gabriel Henri de Sibour (December 23, 1872 – November 4, 1938) was a French architect who worked in Washington, DC.
Also recorded as Jules Henri De Sibour · Jules Gabriel Henri de Sibour
Jules Henri de Sibour

friday-lunch-club.blogspot.com · Public domain
- Name
- Jules Henri de Sibour
- Born
- 23 December 1872
- Birthplace
- Paris, France
- Died
- 4 November 1938
- Place of death
- Washington, D.C., U.S.
- Nationality
- France · United States
- Occupation
- architect
- Education
- Yale University
- Known for
- Clarence Moore House
- Languages
- French
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Jules Gabriel Henri de Sibour (December 23, 1872 – November 4, 1938) was a French architect who worked in Washington, DC.
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wikidata · Q3188660 · wikipedia · Jules Henri de Sibour
In this article
Key facts
Key facts
• Name — Jules Henri de Sibour • Born — 23 December 1872 • Birthplace — Paris, France • Died — 4 November 1938 • Place of death — Washington, D.C., U.S. • Practice — Bruce Price & de Sibour • Significant Buildings — * Clarence Moore House, Washington, D.C. • The Investment Building • McCormick Apartments • Illustration — Drawing designs by de Sibour of Clarence Moore House.
Early life
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.
Career
Career
After college, de Sibour worked with Ernest Flagg and Bruce Price in New York. He went to Paris for additional education, but after Price died in May 1903, de Sibour inherited the practice and continued work at the renamed firm Bruce Price & de Sibour. From 1908 to 1911, de Sibour maintained offices in both New York and Washington, DC. However, a year after moving to DC in 1910, de Sibour closed his New York office. From 1908 through 1922, de Sibour maintained an office in the Hibbs Building, then moved to the Edmonds Building in 1923. • Illustration — McCormick Apartments building De Sibour's most prominent works are grand dwellings and embassy buildings, such as the Clarence Moore House at 1746 Massachusetts Avenue, now serving as the Uzbekistan Embassy to the United States. However, he also designed dozens of office buildings, apartment buildings, and a diverse range of structures. In 1910, de Sibour designed The Investment Building, a nine-story bank and office, constructed by J. L. Marshall at 15th Street and K Street NW. The same year he designed the McLachlen Building at 1001 G Street NW and what is now the national headquarters of the National Association of Colored Women's Clubs at 1601 R Street NW for Richard Thomas Mulligan and his wife Emily Ogston Mulligan niece of Secretary of the Navy, George M. Robeson. In 1911, be designed a nine-story office building at 1512 H Street NW and in 1912, a four-story apartment building at 1409 15th Street NW and a five-story apartment building at 1785 Massachusetts Avenue NW. He collaborated with the Boston firm of Desmond and Lord on the Clapp Memorial Building (443 Congress Street, Portland, Maine) opened in 1920. In 1922, de Sibour designed an apartment building, remarkably similar to his design for the 1922 Hamilton Hotel, at 1200 16th Street NW that was later converted to become The Jefferson Hotel. In 1923, J.H. deSibour also designed the Lee House, an eight-story hotel at the northwest corner of 15th Street and L Street NW, for the Kenwood Corporation. Working in the Beaux-Arts style throughout his career, de Sibour's buildings are characterized by their extensive applied decoration and the French influence in their design. Additional notable buildings include the Chevy Chase Club, the University Club, the Chase's Theater and Riggs Building, W. B. Hibbs and Company Building and the Federal-American National Bank. He designed the French Embassy at 2221 Kalorama Road NW, the Wilkins House at 1700 Massachusetts Avenue NW serving as the Peruvian Chancery, the Stewart Residence serving as the Embassy of Luxembourg at 2200 Massachusetts Avenue NW, and Oxon Hill Manor (1928), an estate for Sumner Welles in Oxon Hill, Maryland.
Personal life
Personal life
In 1898, de Sibour married Margaret Marie Clagett, daughter of Mr. and Mrs. William H. Clagett, of Washington, DC. Jules and Margaret had three sons: Henri Louis, Jacques Blaise, and Jean Raymond.

Typical Floor Plan—Apartment House at 1785 Massachusetts Avenue
Jules Henri de Sibour
Life and career
Dated record
Life and career
The full dated record · 2 entries
1872
Jules Henri de Sibour born at 8th arrondissement of Paris.
1938
Jules Henri de Sibour died at Washington, D.C..
Places
Named by the record
Places
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8th arrondissement of Paris.
Birth place
Washington and D.C.
Death place
Primary material
Documents and archives
Institutional database
- Wikidata, structured authority record Q3188660: Jules Henri de Sibour
Scholarly · Wikimedia Foundation
reference work
- “Jules Henri de Sibour”, English Wikipedia, consulted as further reading
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References
Citations
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Institutional database
Wikidata, structured authority record Q3188660: Jules Henri de SibourWikimedia Foundation
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Born at
1- 8th arrondissement of ParisPlace
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Studied at
1- Yale UniversityOrganisation
Established from a fact already recorded on a verified source.
Further particulars
Held on the record
Further particulars
Open the remaining particulars
The authorities additionally record the headings Jules Henri De Sibour and Jules Gabriel Henri de Sibour. His recorded language was French. He was the child of Jean Antonin Gabriel de Sibour. He married Margaret Marie Clagett. Connected to 1 other published record in the VALÉORINE Encyclopedia.
Identity and origins
Within the Encyclopedia
The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 17 August 2026.
Elsewhere in Design
11,558 published records in this field, each with its sources named.
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