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Peter Joseph De Muth (January 1, 1892 – April 3, 1993) was a Democratic member of the U.S. House of Representatives from Pennsylvania.

Peter J. De Muth
PDeMuth-Group of Legislators ask president for flood control dollars (cropped).jpg
De Muth in 1938
Member of the U.S. House of Representatives
from Pennsylvania's 30th district
In office
January 3, 1937 – January 3, 1939
Preceded byJ. Twing Brooks
Succeeded byRobert J. Corbett
Personal details
Born(1892-01-01)January 1, 1892
Pittsburgh, Pennsylvania
DiedApril 3, 1993(1993-04-03) (aged 101)
Laguna Hills, California
Political partyDemocratic


Peter J. De Muth was born in Pittsburgh, Pennsylvania on January 1, 1892. He received a B.S. from the Carnegie Institute of Technology in Pittsburgh, and worked as a civil engineer from 1914 until his enlistment in the United States Navy as a chief machinist mate on July 15, 1918. He returned to Pittsburgh and was employed as a sales manager from 1919 to 1922. He was engaged in the real estate business and as a building contractor in 1922.

De Muth was elected as a Democrat to the Seventy-fifth Congress. He was an unsuccessful candidate for reelection in 1938. He resumed the real estate and building business in Pittsburgh until June 1949, when he moved to Los Angeles, California. He continued to work in the real estate, insurance, and building business, and was a resident of Laguna Hills, California, until his death. He died on April 3, 1993 in Laguna Hills, California.


  • United States Congress. "Peter J. De Muth (id: D000225)". Biographical Directory of the United States Congress.
  • The Political Graveyard
U.S. House of Representatives
Preceded by
J. Twing Brooks
Member of the U.S. House of Representatives
from Pennsylvania's 30th congressional district

January 3, 1937 – January 3, 1939
Succeeded by
Robert J. Corbett
Honorary titles
Preceded by
Hamilton Fish III
Oldest Living U.S. Representative
(Sitting or Former)

January 18, 1991 – April 3, 1993
Succeeded by
Margaret Chase Smith