[1] 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.
[5] In 1949, they co-directed Begone Dull Care, which was designated as a "masterwork" by the Audio-Visual Preservation Trust of Canada.
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/Le Lion et la Souris (1976) and The Town Mouse and the Country Mouse/Le Rat de maison et le Rat des champs (1980).
[11] Begone Dull Care (1949) Family Tree (1950)[12] Now is the Time (1951) Around Is Around (1951)[13] Rythmetic (1956) Lines: Vertical (1960)[14] Mosaic (1965)[15] The Hoarder (1969)[16] Paradise Lost (1970)[17]