About Sister Mary Leo
Lived 1895 – 1989 (aged 94). Sister Mary Leo was a New Zealand music educator.
Dame Sister Mary Leo Niccol (3 April 18955 May 1989) was a New Zealand religious sister who is best known for training some of the world's finest sopranos, including Mina Foley, Dames Malvina Major, Kiri Te Kanawa, Mona Ross and Heather Begg.
Biography She was born as Kathleen Agnes Niccol in Auckland and educated by the Sisters of Mercy. She had a talent for music and eventually adopted the vocation of a teacher of music. She took private classes in dancing, elocution, and singing.
She joined the Sisters of Mercy at the age of 28, taking the religious name Sister Mary Leo. She occupied herself in the work of her religious institute in tending to the sick and needy. Sister Mary Leo initially began her teaching career as a violin teacher. She never received formal training in vocal technique. It was in the late 1930s, after she heard a recording of Deanna Durbin and was so taken with Durbin's natural tone, flexible technique, vocal range, and repertoire that included both opera and light music, that she decided to devote her time to teaching singing. Dame Heather Begg, Mina Foley, Judith Edwards, Elisabeth Hellawell, Patricia Price, Mona Ross and Elaine Dow; Leo's influence extended into the rock music world with student Jan Hellriegel. She was appointed a Member of the Order of the British Empire, for services to music, in the 1963 New Year Honours, and elevated to Dame Commander of the Order of the British Empire in the 1973 Queen's Birthday Honours. She died in 1989, aged 94.
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Important facts
People in Sister Mary Leo's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Sister Mary Leo's
Frequently asked questions
Who was Sister Mary Leo?
New Zealand singing coach (1895-1989)
When was Sister Mary Leo born?
Sister Mary Leo was born on 3 April 1895 in Auckland Region.
When did Sister Mary Leo die?
Sister Mary Leo died on 5 May 1989 in Auckland.
What was Sister Mary Leo's occupation?
Sister Mary Leo was a music educator.
What nationality was Sister Mary Leo?
Sister Mary Leo was New Zealand.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Sister Mary Leo. https://biography.guide/sister-mary-leo/
MLA: "Sister Mary Leo." Biography.guide, https://biography.guide/sister-mary-leo/.
Chicago: "Sister Mary Leo." Biography.guide. https://biography.guide/sister-mary-leo/.
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