Peter Hood Ballantine Frelinghuysen Jr. (January 17, 1916 – May 23, 2011) was an American politician and attorney. He represented New Jersey's fifth congressional district in the United States House of Representatives as a Republican from 1953 to 1975.

Early life and education

Frelinghuysen was born in New York City to Peter H. B. Frelinghuysen and the former Adaline Havemeyer. Frelinghuysen's father was a banker who descended from 18th century Dutch settlers in Somerset County. His siblings included his twin brother Henry O.H. Frelinghuysen, a philanthropist and civic leader, George G. Frelinghuysen, and Frederica Frelinghuysen Emert.

He came from a long line of New Jersey politicians dating back to the early years of the United States, including four United States senators and two House members. He was the grandson of George Griswold Frelinghuysen, great-grandson of Frederick T. Frelinghuysen, the great-great-nephew of Theodore Frelinghuysen, and the great-great-great-grandson of Frederick Frelinghuysen. It was purchased by First Fidelity Bancorporation of Newark in 1992.

U.S. Congress

In 1952, he was elected to the House of Representatives from New Jersey's 5th congressional district and served there until his retirement from politics in 1975. As a moderate Republican, Frelinghuysen voted in favor of the Civil Rights Acts of 1957, 1960, 1964, and 1968, as well as the 24th Amendment to the U.S. Constitution and the Voting Rights Act of 1965, but not the Johnson administration's War on Poverty programs, although he voted in favor of Medicare, a program that expanded medical assistance for the elderly.

thumb|right|1954 interview

In December 1959, when the Port of New York Authority's plans to develop a tract of woodlands and marsh near his estate in Morris County as an international airport serving the New York City region were exposed, Frelinghuysen participated in the opposition by the Jersey Jetport Site Association that was composed of local residents and conservationists, which raised funds to purchase almost 3,000 acres of the targeted site and donated it to the federal government, to be preserved forever as park lands. With the defeat of the airport development initiative, that parcel became the initial portion of the Great Swamp National Wildlife Refuge, established by federal statute on November 3, 1960, in the middle of the development controversy.

1966 blackmail incident

In 1966, extortionists targeted Frelinghuysen for blackmail, arranging for him to have a sexual encounter with an underage male and then, posing as police officers, threatening him with public exposure. Frelinghuysen paid them $50,000. He later cooperated with the FBI's investigation of the extortionist ring, but the Justice Department notified the leadership of the House of Representatives and Frelinghuysen was forced off the Armed Services Committee.

Later life

After leaving Congress, Frelinghuysen served on the boards of several nonprofit institutions, including the Metropolitan Museum of Art and the New York Botanical Garden. She was a descendant of the founder of Procter & Gamble. They lived in a 20-room Georgian Colonial home on 32 acres in Harding Township, New Jersey, designed by James W. O'Connor in 1948.

His wife died in 1996. He died on May 23, 2011, at his home in Harding Township, New Jersey.