(Helen) Margaret Moncrieff (6 February 1921 – 12 November 2008) was a Scottish cellist and author writing under the pseudonym Helen McClelland and writing novels in the Chalet School series.
[2][3] In London, Moncrieff studied the cello at the Royal College of Music with Ivor James, and then in Paris, with Pierre Fournier.
[2] She went on to a distinguished career as a soloist, chamber musician, and teacher.
Moncrieff was a professor of cello at the Royal College of Music.
In 1957, Moncrieff married Alexander Kelly (1929–1996) a pianist, composer, and later head of keyboard studies at the Royal Academy of Music.