1967: Pollock Gallery, Toronto -- Solo (Sculpture).
Cleveland, Ohio -- Canadian Art (Group).
1968: Northwood Country Club, Toronto -- (Group).
1969: Galerie Ustel, Toronto -- (Group).
1970: Oakville Centennial Gallery, Oakville, ON -- (Two-Person).
1971: Ontario Society of Artists, 99th Annual Open Juried Exhibition, Toronto --
(Top Award).
Merton Gallery, Toronto -- (Group).
1972: Canada Life Place, Toronto -- (OSA Group).
Arts & Letters Club, Toronto -- (OSA Group),
Canadian Interiors Design Show, Toronto -- (Group).
Commerce Court, Toronto -- (SSC Group).
Merton Gallery, Toronto -- (Group).
1973: Shaw-Rimmington Gallery, Toronto -- (Two-Person).
Arts & Letters Club, Toronto -- (OSA Group).
Princess Margaret Hospital, Toronto -- (SSC Group).
1974: Evans Gallery, Toronto -- (Group).
Gallery 1667, Halifax, NS -- (Group).
Aviva 22nd Annual Art Show, Toronto -- (Group).
OSA 102nd Annual Open Juried Exhibition, Toronto.
1975: Seventh Annual Arts Hamilton Exhibition, Hamilton, ON.
Evans Gallery, Toronto -- (Group).
1976: Aviva 24th Annual Art Show, Toronto -- (Group).
1977: Harbourfront Art Gallery, Toronto -- ("Rehearsal" Group).
1978: "Sculpture Canada '78", Paris, Brussels, London, UK, Toronto --
(SSC Group).
Art Gallery of Hamilton, Hamilton, ON -- (Group).
Great George Street Gallery, Charlottetown, P.E.I. -- (Group).
1980: Confederation Centre Art Gallery & Museum, Charlottetown, P.E.I. --
15-Year Retrospective (Sculpture, Solo).
1981: Confederation Centre Art Gallery & Museum -- (Solo, small works on paper).
Confederation Centre -- ( Contemporary Canadian Sculpture, Group).
1984: McIntosh Art Gallery, London, ON -- (Group).
Howell Gallery, London, ON -- (Group) .
1987: Thielsen Galleries, London, ON -- (Sculpture and small works on paper).
1988-1990: (Withdrawal of all work from all commercial galleries).
1991: Sandy Snelgrove's Gallery, London, ON -- (Two-Person, Sculpture).
(Current Representative, The Westland Gallery, London, ON.)
"From Within Outwards: The Sculpture of Ian Trowell," published in 1996, is a record in photos and text of the sculptor's range of works over the years and of principal events in his life.