Queen Mary's command record contains three names, although two captains shaped her service. Reginald Hall commanded first, and Cecil Prowse led the ship through the operations that culminated at Jutland. Captain Rudolf Bentinck held command only from 12 to 13 October 1914, filling the interval after Hall was invalided off and before Prowse arrived. The one-day tenure appears in the formal record even though Bentinck had no time to influence the ship's service.
Notable Point · 41:00-42:05
Hall, Bentinck, and Prowse in command
A one-day interim command by Captain Bentinck separates Hall's illness-driven departure from Prowse's appointment, explaining why Queen Mary's command history contains three names but two substantive captains.