Robert Whipple (1871 - 1953) would also become Managing Director and share that role with Cecil Mason, until Darwin moved on to be head of the National Physical Laboratory and Whipple moved to be chairman of the board.
Robert Whipple (1871 - 1953) and Cecil Mason would become Managing Director and share that role until Darwin moved on to head the National Physical Laboratory, after which Whipple took over as chairman of the board.