Born in Ottawa, she was hearing impaired from an early age, which she later credited with focusing her attention on the visual world as a means of communication. After attending Lisgar Collegiate Institute in Ottawa, Lambart studied at the Ontario College of Art for five years, graduating in 1937. Her plan had been to continue her art studies in the U.K., however, the outbreak of Second World War made that impossible. Instead, Lambert spent a year and a half working on illuminations and lettering for the first Book of Remembrance, commemorating Canadian war dead in the First World War.
NFB career

In 1949, Lambart and McLaren co-directed Begone Dull Care, which was designated as a “masterwork” by the Audio-Visual Preservation Trust of Canada. She also did animation for McLaren and Claude Jutra’s pixilation film A Chairy Tale.

In its 1999 obituary for Lambart, Animation World Network stated that:

In the early 1960s, McLaren became interested in ballet films, which held no interest for Lambart, so she started thinking about doing her own films. She perfected the technique of paper cutouts transferred to lithograph plate which she would then paint and animate. She used this technique in seven award-winning films: Fine Feathers (1968), The Hoarder (1969), Paradise Lost (1970), The Story of Christmas (1973), Mr. Frog Went A-Courting (1974), The Lion and the Mouse (1976) and The Town Mouse and the Country Mouse/Le Rat de maison et le Rat des champs (1980).

These animated morality tales for children included several adaptations of Aesop’s fables, and were all rendered with the same style of paper cut-outs transferred to lithograph plates, painted and animated.

Wikipedia: https://en.wikipedia.org/wiki/Evelyn_Lambart

NFB Filmography:
https://www.nfb.ca/explore-all-directors/evelyn-lambart/

Fine Feathers, Evelyn Lambart, National Film Board of Canada