[1] In 1934, he travelled to Mexico to attend a Progressive Education Association Conference, met Mexican artists and studied the local murals.
[3] His work changed: he became an abstract painter, interested in art photography and design, whether applied to graphics, stage or costume.
During his studies in Chicago, Webber exhibited his abstract work in Canada to mixed reviews.
[1] (Tousignant recalls Webber introducing him to abstract expressionism in 1950, an experience which deeply moved him.
[11][1] He was involved with the design of costumes and sets for theatrical presentations at McGill and many commissions integrating art and architecture, executing works such as an exterior mural and interior mobile for the Town of Mount Royal Post Office, and a relief sculpture for the McConnell Engineering Building at McGill.
In 1936 and 1937, Webber held an exhibition of Paintings and Drawings: "Mexican Impressions" at Mellors Gallery, Toronto.
In 1994, his work was included in Origins of Abstraction in Canada: Modernist Pioneers, Robert McLaughlin Gallery, Oshawa.
Following consultation with the Head Surgeon of the Medical School at the University of Toronto, Webber's lame leg was amputated just above the knee.
[1] He died of a heart attack in Montreal in 1959, after making four speeches in the campaign to save an historic house marked for demolition in Perth, Ontario.