A window honouring Perth Avenue Methodist Church parishioners who served in the First World War was unveiled by Mayor Hiltz on September 14, 1924. Located on the north side, it depicted Abraham offering his son Isaac, signifying the service nobly given by the 305 parishioners in the war.
In 1925, the congregation united and became Perth Avenue United Church. In 1970, Perth Avenue United Church amalgamated with Davenport Road United Church to form Davenport-Perth United Church in the Davenport building. The building at 243 Perth Avenue has been converted to condos and it is not known what happened to the window.