The St. Martin-in-the-Fields First World War Window was constructed by Robert McCausland Company and dedicated to parishioners who gave their lives in the war. It was donated by the congregation and unveiled at the opening of the church on May 14, 1922. Sixteen men of St. Martin's gave their lives in the First World War.
The window takes up most of the west wall and the theme is one of sacrifice: Christ on the cross, reflecting the sacrifice of the war dead and the sacrifice of the sacrament, for in the Eucharist we receive the power of new life. It consists of three elements. The middle panel is Christ on the cross, with Jerusalem in the distance and the image of night descending. In the left panel is St. John and an angel above him with the host in one hand and pointing to the body of Christ with the other hand. In the right panel is the Virgin Mary in the garden and an angel above her holding the chalice with the consecrated wine.
