He served with the American Advisory Commission to the Polish Government from 1920 to 1921 and had also acted as war correspondent with Floyd Gibbons in Poland, 1919-1921.
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In 1950, Machrowicz defeated incumbent Democrat George G. Sadowski in the Democratic Party primary election and went on to be elected to represent Michigan's 1st congressional district in the 82nd United States Congress.
Thaddeus Stevens | Thaddeus Herrmann | Thaddeus Amat y Brusi | Academe of St. Jude Thaddeus | William Thaddeus Coleman, Jr. | Thaddeus M. Machrowicz | Thaddeus McCotter | Thaddeus Gibson | Thaddeus Fairbanks | Thaddeus C. Pound |
Nedzi was elected as a Democrat from Michigan's 1st congressional district to the 87th United States Congress in a special election in 1961 to fill the vacancy caused by the resignation of United States Representative Thaddeus M. Machrowicz.