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Male, born 1894-09-23, died 1980-11-17

Associated with the firms network

Mattson and Putnam, Architects; Mattson, John I., and Associates, Architects; Mattson, John I., Architect; Mattson, Kleinsasser and Nakata, Architects; Mattson, Putnam and Simkins, Architects; Mattson, Smith and Putnam, Architects

Professional History


John I. Mattson enlisted for military service on 08/28/1917 and was released on 08/19/1919. (See, Source Information U.S., Department of Veterans Affairs BIRLS Death File, 1850-2010 [database on-line]. Provo, UT, USA: Operations, Inc., 2011, accessed 04/11/2019.)

Principal, John I. Mattson, Architect, Seattle, WA, 1929-1941, 1946-1950. In 1948, his office was located at 1331 3rd Avenue, Room #620. (See Seattle, Washington, City Directory, 1948, p. 871.)

On 04/26/1942, Mattson indicated that he worked for the Seattle School District #1, at the Broadway High School.

Partner, Mattson, Smith and Putnam, Architects, Seattle, WA, c. 1950.

Partner, Mattson, Putnam and Simkins, Architects, Seattle, WA, c. 1953.

Partner, Mattson and Putnam, Architects, Seattle, WA, c. 1954.

Partner, John I. Mattson and Associates, Architects, 1955- . In 1957, Mattson maintained his office in Room #715 of the Lowman Building. (See Seattle, Washington, City Directory, 1957, p. 995.)

Partner, Mattson, Kleinsasser and Nakata, Architects, Seattle, WA, 1970. This firm had its office at 714 North 34th Street in Seattle, WA, in 1970. (See American Architects Directory, 1970, John F. Gane, ed., [New York: R.R. Bowker Company, 1970], p. 607.)

Professional Activities

Completed 15-week course, Camouflage School, Camouflage Division, Office of Civilian Defense, University of Washington, Seattle, WA, 10-12/1942.

Member, American Institute of Architects (AIA), Washington Chapter, 1946- .



B.A., Architecture, University of Washington, Seattle (UW), Department of Architecture, Seattle, WA, 1925.

College Awards

Mattson served as the Massier of the UW Architecture Atelier student organization during his senior year in 1925. (See UW TyeeYearbook, 1925, p. 346.) In 1925, Mattson was only one of three inductees into the architectural honors society, Tau Sigma Delta, in 1925. (The others were Walter Wurdeman and Richard J. Pearce. [See UW TyeeYearbook, 1925, p. 124.])



John Ivar Mattson was born 09/23/1894 in Särkisalo, Finland, a city in the western part of the country, the Swedish name for which was "Finby."

After John Mattson married, he and his wife, Jessie, lived at 711 North 61st Street in Seattle, (See Seattle, Washington, City Directory, 1931, p. 1080.) They lived here until 1935, at least. (See Seattle, Washington, City Directory, 1935, p. 991.)

They reported an address of 820 33rd Avenue North, Seattle, WA, in 1938. (See Seattle, Washington, City Directory, 1938, p. 1041. The address was listed, probably erroneously as 920 33rd Avenue North.) The 1940 US Census indicated that this house had an estimated value of $10,000. (See, Source Citation Year: 1940; Census Place: Seattle, King, Washington; Roll: m-t0627-04378; Page: 11A; Enumeration District: 40-149, accessed 04/11/2019.) They continued to reside at this address in 1958. (See Seattle, Washington, City Directory, 1958, p. 975)

His last residence was in the 98102 zip code of Seattle, WA.


He wed Jessie M. Kimball (born c. 1893 -d. 02/23/1985 in Seattle, WA) on 06/18/1930 in Seattle, WA.

Jessie was a long-time school teacher in the Seattle Public Schools. From 1931 until 1938, at least, she worked at the Grover Cleveland School. In 1939, she switched to the Broadway High School. (See Seattle, Washington, City Directory, 1939, p. 978.)

In 1958, she was a teacher at the David T. Denny Junior High School in Seattle. (See Seattle, Washington, City Directory, 1958, p. 975)


John and Jessie had a daughter, Karen Mattson (born c. 1932 in Seattle, WA) and a son, John Kimball Mattson (born c. 1936 in Seattle, WA).

Biographical Notes

According to this World War II draft registration card of 04/26/1942, Mattson stood 5-feet 3-and-3/4-inches tall and weighed 160 pounds at age 47. He had brown hair, brown eyes and a ruddy complexion. It indicated that he had a scar on his right thumb. (See, Source Citation The National Archives at St. Louis; St. Louis, Missouri; Record Group Title: Records of the Selective Service System, 1926-1975; Record Group Number: 147; Box or Roll Number: 133, accessed 04/11/2019.)

SSN: 532-18-7509.

Associated Locations

PCAD id: 2753