Donald Irwin Robertson (December 5, 1922 – March 16, 2015) was an American songwriter and pianist, mostly in the country and popular music genres. He was inducted into the Nashville Songwriters Hall of Fame in 1972. As a performer, he hit the US Top 10 with "The Happy Whistler" in 1956. The track reached #8 in the UK Singles Chart the same year. It sold over one million copies, and was awarded a gold disc