Nicholson was born on April 22, 1937, in Neptune City, New Jersey,[REF][REF][REF] the son of a showgirl, June Frances Nicholson (November 5, 1918 - July 31, 1963) (stage name June Nilson) [REF].
In 1974, Time magazine researchers learned, and informed Nicholson, that his "sister," June, was actually his mother, and his other "sister," Lorraine, was really his aunt [REF].