After hauling down his flag as Commander-in-Chief at Harwich : Admiral Tyrwhitt rowed ashore from his flagship by six captains . May 1919 Admiral of the Fleet Sir Reginald Yorke Tyrwhitt, 1st Baronet, GCB, DSO (10 May 1870 - 30 May 1951) was a senior officer of the Royal Navy in World War I who commanded light forces stationed at Harwich on the east coast of England during the first part of the war.