The first solo exhibition of Howard's paintings was at Toronto's Picture Loan Society in 1957. Pearl McCarthy, then art critic for
The Globe and Mail, wrote that Howard was "far ahead of most landscapists in depth" and described her work as "first class ... the answer to a permanent sensuous desire". The last solo exhibition of Howard's paintings and drawings took place posthumously at the Art Gallery of Northumberland, Cobourg, Ontario, in 2006. '''Solo exhibitions of Howard's work and/or the Gauntlet Press''' • Picture Loan Society, Toronto 1957, 1958, 1960, 1965 • Wells Gallery, Ottawa, 1966, 1982, 1984 • Fleet Gallery, Winnipeg, 1966 •
Victoria College, Toronto, 1966 • Sisler Gallery, Toronto, 1974, 1976 •
Hart House, University of Toronto, 1975 •
The Event in the Mind, Prince Arthur Galleries, Toronto, 1980; catalogue • Yaneff Gallery, Toronto, 1983 •
Massey College, Toronto, 1984 • Latcham Gallery, Stouffville, 1985 •
O'Keefe Centre, Toronto, 1986 •
National Library of Canada, 1986 •
University College, Toronto, 1987 • Georgetown Library & Cultural Centre, 1988 •
The Arts and Letters Club of Toronto, 1993 •
E.J. Pratt Library, Victoria University, University of Toronto, 1995 •
Robarts Library, University of Toronto, 1999 • The Upstairs Gallery, Art Gallery of Northumberland, Port Hope, 2003 •
Seeking Light: Last Paintings and Selected Drawings. Art Gallery of Northumberland, Cobourg, 2006; catalogue
Group exhibitions • Ontario Society of Artists, 1958, 1959 • Women's Committee, Art Gallery of Ontario, 1958, 1969 • Douglas Duncan Collection, Victoria College, Toronto, 1962 • Toronto Collects, Art Gallery of Ontario, 1961 • Women Artists, Canadian National Exhibition, Toronto, 1961 • Canadian Artists, Eaton's College Street, 1961 • Canadian Society of Graphic Arts, 1958, 1959, 1960, 1963 • National Home Show, 1960, 1961, 1962 • C.U.S.A.C. Travelling Show, Hart House, 1958–1959 • Women's Committee, London Art Gallery, 1962 • Canadian Watercolours, Drawings & Prints, National Gallery of Canada, 1966 • Douglas Duncan Collection, Windsor, London, Hamilton, 1967 • Drawings and Sculpture, Art Gallery of Ontario, 1976 •
The Living Image, Macdonald Gallery, Toronto (3 artists); catalogue • R.C.A. Centennial Contemporary Exhibition, Toronto, 1980 • Inaugural Exhibition, Academy House, R.C.A., Toronto, 1987–1988 •
Art Under Fire, Academy House, R.C.A., Toronto, 1988 •
Fine Printing: The Private Press in Canada. Travelling exhibition: Toronto, Fredericton, Calgary, Grimsby, Saskatoon, Brandon, Pointe Claire, Halifax, Saint John, 1995–1997; catalogue •
Women and Texts, University of Leeds, 1997 (curated by Special Collections, University of Calgary); catalogue •
Toronto in Print, Thomas Fisher Rare Book Library, 1998; catalogue •
Earthworks, an exhibition of works by Ontario Academicians, John B. Aird Gallery, Toronto, 1998 •
Traces of Land, Traces of People: Contemporary Images of Ontario, Ontario Legislature, Queen's Park, Toronto, November 1999 – July 2000 == Further reading ==