The ait is recorded in at least two distinct parts in detailed maps until the end of the 19th century; the west part was built up in height and measured .OS 25-inch map of 1894, Surrey sheet VI.7 revised 1893–94, published 1898. Its named features were a large Boat House, the Island Hotel, a bowling green in the west and the Thames Electric & Steam Launch Works. The east end is marked with marsh plantation and liable to flood; it was in the same maps measured at . Together the parts form the same isle as today.
