On February 1, 1920, a stained glass window at Bonar Presbyterian Church was unveiled by Mrs. E. Clark, who had four sons in the war and one killed, and by James Ritchie who lost lost two sons in the war. The window was dedicated to the 62 members of the church who gave their lives in the First World War.

The congregation at 186 St. Clarens Street closed in 1969 and amalgamated with Parkdale Presbyterian Church to form Bonar-Parkdale Presbyterian Church in the Parkdale building.