Smithton is a borough in Westmoreland County, Pennsylvania, United States. The population was 399 at the 2010 census. As of 2018, the population was listed at 378. Smithton has its own post office, with zip code 15479, and is serviced by Yough School District.

Shirley Mae Jones is an American actress and singer. In her six decades in show business, she has starred as wholesome characters in a number of musical films, such as Oklahoma! (1955), Carousel (1956), and The Music Man (1962). She won the Academy Award for Best Supporting Actress for playing a vengeful prostitute in Elmer Gantry (1960). She played the lead role of Shirley Partridge, the widowed mother of five children, in the musical situation-comedy television series The Partridge Family (1970–1974), which co-starred her real-life stepson, David Cassidy, son of Jack Cassidy.