Kathy Linden was an American pop singer from Moorestown Township, New Jersey. She grew up in Burlington, New Jersey. Her real name was Marion Londres, and she was the daughter of Frank (Francisco) Londres and Marion E. Londres. She was born about 1935. They lived on Elm Avenue.
Linden scored two hits on the U.S. Billboard Hot 100 late in the 1950s. The first was "Billy", a song originally written in 1911; it hit number seven in 1958. The second was "Goodbye Jimmy, Goodbye", which rose to number eleven in 1959. Both singles were released on Felsted Records and featured Joe Leahy's backing orchestra. "Goodbye Jimmy Goodbye" incorporated elements of two previous tunes - the British music hall song "Two Lovely Black Eyes" and the country song "Goodbye Little Darling". There were a few covers, the biggest of which was by Ruby Murray in the UK. At the time of her first hit single Kathy was a married woman in her twenties, but her record company wanted her to appear as a child due to her childish voice.