Complex sentence: Charles Peck, the only one of its sons lost to the horror of the First World War, was 19 when he died in September 1917, is remembered by a little war memorial in the church.
Split into simpler sentences: Charles Peck, the only one of its sons lost to the horror of the First World War, was 19 when he died in September 1917. He is remembered by a little war memorial in the church.