David McMahon's life began on December 11, 1910, in the bustling metropolis of New York City, New York, USA. As an actor, he would go on to leave a lasting impact on the entertainment industry, with notable roles in films such as It Conquered the World, released in 1956, as well as television shows like Cavalcade of America, which aired in 1952, and Rescue 8, which premiered in 1958.
Throughout his life, David McMahon was also fortunate enough to share it with the love of his life, Dorothea McMenamin, whom he married. Tragically, his life was cut short, and he passed away on January 27, 1972, in Pasadena, California, USA.