Complex sentence: During the First World War she was a member of the Central Prisoners of War Committee of the British Red Cross Society, and for this work she was appointed Dame Commander of the Order of the British Empire (DBE) in the 1920 civilian war honours.
Split into simpler sentences: During the First World War, she was a member of the Central Prisoners of War Committee of the British Red Cross Society. For this work, she was appointed Dame Commander of the Order of the British Empire (DBE) in the 1920 civilian war honours.