As one of the first artists in Quebec to adopt
lyrical abstraction, Petry's 1959 solo exhibition at Galerie
Agnès Lefort in Montreal drew attention for "simplicity and economy of harmonious line, form and colour". In 1962, the
National Gallery of Canada organized a solo exhibition of her work,
Paintings and Watercolours which toured Western Canada from September 1962 to May 1963. Although Petry moved to London, England, in 1962, she continued to exhibit in Canada with a solo exhibition of paintings,
Recent Works, held at Galerie Agnès Lefort in 1963. In the United Kingdom, she participated in the 1966 Second
Commonwealth Biennial of Abstract Art in London and in the 1967
Canadian Abstract Art Centennial Exhibition held in both London and Edinburgh. In 1968, she attended the
Slade School of Art for post-graduate lithography and studied under Stanley Jones. By 1970, Petry divided her time between Montreal and London. In Montreal, she joined the print-making studio GRAFF and participated in a group exhibition at
North Carolina State University. In 1975, Nancy Petry was one of seven artists invited by the
Musée d'art contemporain de Montréal to paint "in situ" at the exhibition ''Processus '75
. Her work Air Currents'', composed of sixteen 30"x 48" panels, was noted for its "extreme lightness of treatment, form and material". In the mid-1970s, Petry's art evolved to include happenings,
art interventions and new media. In 1975, she joined the artist-run Véhicule Art, Montreal's first parallel gallery for alternative art including installation, performance and multimedia art. In 1978, she attended a 16mm film-making course conducted by Jenny Okun at the
London Film-Makers' Co-op and began incorporating film into her art. In 1979, she created
The Shadow Figure collaborating with dancers
Édouard Lock and Michelle Fèbvre at Vehicule Art, and
Les Naiades with dancer Bonnie Farmer at Montreal's Concordia University in 1994. Inspired by travel throughout her career,
Voyages, a solo exhibition of her early work held at Montreal's Beaux-arts des Amériques gallery in 2014, ==Contribution==