Peter Lawford was a popular 20th century Human actor and Las Vegas entertainer during Earth's 1960s. Peter was so popular, in fact, he was included in the holosuite program Bashir 62, a 24th century rendition of 1962. At the time, he was close friends with Frank Sinatra, Dean Martin, Sammy Davis, Jr., and Joey Bishop.
That year, Vic Fontaine interrupted a heart-to-heart he was having with Quark, because he and his lady friend, Ginger, were on their way out to see Peter and Jimmy perform at the Sands Hotel. (DS9: "What You Leave Behind")