James John Davis (October 27, 1873 – November 22, 1947) was an American steel worker and Republican Party politician in Pittsburgh, Pennsylvania. He served as U.S. Secretary of Labor and represented Pennsylvania in the United States Senate. He was also known by the nicknames of the "Iron Puddler" and "Puddler Jim." Born as James John Davies in Tredegar, Wales, he emigrated with his parents, David James Davies and Esther Ford Nicholls Davies, to the United States in 1881 at the age of eight. They settled in Pittsburgh, Pennsylvania and later in Sharon, Pennsylvania. He was apprenticed as a puddler's assistant in a steel mill, and as a result, acquired his nickname. In 1893, he moved to Elwood, Indiana, and served as city clerk from 1898 to 1902. From 1903 to 1907, he served as Recorder of Madison County, Indiana, before returning to Pittsburgh. He personally signed his name as James J. Davies even though his surname had been Americanized to Davis and he became well known through his Americanized surname. He was married and had five children. Davis served as United States Secretary of Labor from 1921 to 1930 under Presidents Warren G. Harding, Calvin Coolidge, and Herbert Hoover. He is one of only three Cabinet officers in U.S. history to hold the same post under three consecutive Presidents. The other two Cabinet officers to accomplish this were Secretary of Agriculture James Wilson and Secretary of the Treasury Andrew W. Mellon. During his tenure, he focused on immigration, then a Labor Department responsibility, and established the United States Border Patrol and proposed restrictions in immigration quotas. At the urging of the iron and steel workers union, he successfully urged U.S. Steel to abandon the 12-hour workday. He resigned as Secretary of Labor upon his election to the United States Senate from Pennsylvania, accepting the seat denied to William S. Vare. In 1922, he published his autobiography, The Iron Puddler. During his tenure in the Senate, he co-sponsored the Davis-Bacon Act with New York Congressman Robert L. Bacon. He was defeated for re-election in 1944. Delta Sigma Phi Fraternity inititated Davis as its only honorary member in 1923 at the request of the Omega chapter at the University of Pittsburgh. Davis joined the Loyal Order of Moose in 1906 as its 247th member and staged a successful reorganization. He rose to become the Director-General and took the Order internationally to Bermuda, Britain and Canada. In 1926, he founded the Grand Lodge of Britain at his birthplace in Tredegar, South Wales. Davis died in Takoma Park, Maryland, following a heart attack at the age of 74. He is buried at Uniondale Cemetery in Pittsburgh.