Peter Joseph Brennan (May 24, 1918 – October 2, 1996) was an American labor activist and politician who served as United States Secretary of Labor from February 2, 1973 until March 15, 1975 in the administrations of Presidents Nixon and Ford. Brennan had previously been the president of both the Building and Construction Trades Council of Greater New York and the Building and Construction Trades Council of New York, and he returned to the former position after leaving the Ford administration. He was a strong opponent of affirmative action measures to increase the number of minority construction workers. After organizing a demonstration in support of the Nixon administration that turned into the Hard Hat Riot of May 8, 1970, where construction workers violently attacked student anti-war protesters, Brennan was wooed by the Nixon administration as a potential supporter in the 1972 presidential election. His work for Nixon in that election was crucial in increasing the vote for Nixon in New York and in the union movement. Early life Peter J. Brennan was born in New York City in 1918. His father was an ironworker who died from influenza. He graduated from Commerce High School, then received a B.S. degree in business administration from the City College of New York. While in college, he became an apprentice painter and joined Local 1456 of the Painter's Union. After the USA entered World War II, Brennan enlisted in the Navy, serving as a chief petty officer aboard a submarine home ported in Guam. Brennan's career as a union official started when he was elected business manager of Local 1456 in 1947. In 1951, he became the director of the New York Building Trades Council's Maintenance Division. Brennan married the former Josephine Brickley in 1940, (she died in 1987). The couple had one son, Peter Joseph Brennan, Jr., and two daughters, Joan Brennan and Peggy Brennan. Brennan was elected president of the Building and Construction Trades Council of Greater New York in 1957 and president of the Building and Construction Trades Council of New York. He also served as the vice president of the New York City Central Labor Council and the New York State AFL-CIO. These positions were influential both in the labour movement and politically. The Construction Trades Council represented 250,000 members from 18 locals and had close ties to New York Governor Nelson Rockefeller and leading politicians in New York City.