John F. Kennedy on Long Island, in NYC

Sen. John F. Kennedy is seen at a Democratic fundraising dinner at the Garden City Hotel with his wife, Jacqueline, and John F. English, chairman of the Nassau County Democratic Committee, on June 6, 1959.

A Hempstead police officer yells at the crowd as he tries to keep them back at Franklin and Fulton streets in Hempstead on Nov. 5, 1960, three days before Election Day. The crowd pushed out into the middle of the road well ahead of the arrival of Sen. John F. Kennedy.

John F. Kennedy speaks at a campaign rally at the Long Island Arena in Commack on Nov. 6, 1960.

Sen. John F. Kennedy speaks at the Long Island Arena in Commack on Nov. 6, 1960.

Sen. John F. Kennedy gets out of his car on his arrival at Roosevelt Raceway in Westbury on Oct. 12, 1960.

Sen. John F. Kennedy and Jack English, a Democratic leader in Nassau County, talk before a speech at Roosevelt Raceway in Westbury on Oct. 12, 1960.

Sen. John F. Kennedy wipes his forehead as he chats with Jack English, a Nassau County Democratic leader, before Kennedy spoke at Roosevelt Raceway in Westbury on Oct. 12, 1960.

Sen. John F. Kennedy speaks at Roosevelt Raceway in Westbury on Oct. 12, 1960.

Sen. John F. Kennedy speaks at Roosevelt Raceway in Westbury on Oct. 12, 1960.

An eagle atop an American flag is in the foreground as President John F. Kennedy and others look at a model of the World's Fair in Flushing on Dec. 14, 1962.

President John F. Kennedy looks over a model of the World's Fair in Flushing on Dec. 14, 1962.

The wind tosses President John F. Kennedy's hair as he speaks at the World's Fair groundbreaking in Flushing on Dec. 14, 1962.

The driver of the tractor that was used to break ground at the World's Fair in Flushing leans over to shake hands with President John F. Kennedy on Dec. 14, 1962.

An undated photo of John F. Kennedy on a visit to New York.

An undated photo of John F. Kennedy shows him speaking on Long Island.