Born in New York City, Clemente lived in Brooklyn. He married Josephine Tresonte and was the father of three daughters. His official jobs included labor organizer, secretary, and business agent for Manhattan Local 856 of the International Longshoremen's Association (ILA). Clemente's criminal record included rape, assault, disorderly conduct, extortion, conspiracy to violate federal liquor laws, and perjury.
Originally a lieutenant in a crew of Rocco Pellegrino, Clemente used his power at the waterfront to extort money from shipping companies and the companies that loaded and unloaded cargo. At one point, the president of a company managing stevedores paid Clemente $11,000 for one of his daughter's weddings. In 1953, Clemente was convicted of extortion, removed from office at the ILA local, and sent to prison for five years. After his release, he exercised control at the ILA through his surrogates.
In 1977, the government gained the cooperation of William Montella, a shipping company employee, and planted undercover surveillance devices in his office. Over the next two years, law enforcement recorded meetings there in which Clemente received payments from Montella. In 1979, Clemente was convicted on Racketeer Influenced and Corrupt Organizations Act (RICO) charges including extortion and tax evasion and was sentenced to 20 years in federal prison.
On February 21, 1987, Clemente was released from prison.[1] Clemente died in December 1987.