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Male, Germany/US, born 1876-10-08, died 1974-07-25

Associated with the firms network

Cutter and Malmgren, Architects; Willatsen and Byrne, Architects; Willatsen, Andrew C.P., Architect; Willatsen, Stimson and Company, Architects

Professional History

Carpenter, c. 1900; Draftsman, Frank Lloyd Wright Studio, Oak Park, IL, c. 1902-1907; Draftsman, Cutter and Malmgren, Architects, Seattle, WA, 1907-1909; Partner, Willatzen and Byrne, Architects, Seattle, WA, 1909-1913; Principal, Andrew Willatzen (later Willatsen), Architect, Seattle, WA, 1914-1930; Partner, Willatsen Stimson, Company, Seattle, WA, 1929; Principal, Andrew C. Willatsen, Architect, Seattle, WA, 1930-19??;

Member, American Institute of Architects, Washington Chapter, 1910-1911;



Born in Northern Germany, Willatsen emigrated to the United States in 1900.

Willatsen's last residence was located in the 98102 zip code of Seattle, WA.


Andreas (Andrew) Willatsen was born of German and Danish ancestry.

Biographical Notes

Some spell his name "Willetzen or "Willatzen." His original name was "Willatzen," but he, like other architects on the West Coast of German origin, changed their names due to Anti-German sentiment during World War I. (For example, the California architect, Charles Sumner Kaiser, became known as "Charles Sumner" after World War I.) Later drawings by the architect spell his name, "Willatsen."

He was probably the best-trained Prairie Style architect to transplant himself to Seattle.

SSN: 538-22-4884.

PCAD id: 1973