John Birch (born 1929) was educated at Trent College and left in July 1947 to study at the Royal College of Music, London. In 1953 he became Organist and Master of the Choristers at All Saint's Church, Margaret Street, London when it still maintained a small choir school with a boys choir singing the daily services. Wikipedia
The definitive Wikipedia entry for John Birch. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/John_Birch_%28musician%29