Trivia: In Celtic folklore, a Water Horse is another name for a Kelpie, a rather nasty water spirit that would drown curious passersby. An odd name for a friendly gentle creature as depicted in the film.
Trivia: One of the screams heard when Crusoe flips the boat over with the three soldiers, is the famous "Wilhelm" scream. (01:24:15)
Answer: When Captain Hamilton and his troop first arrive he is greeted at the front door by Mrs. MacMorrow, Kirstie and Angus. He then says, "The housekeeper, Mrs. MacMorrow, is making all the arrangements," whereupon he realizes HQ failed to notify her of their arrival. Then Mrs. MacMorrow says, "When Lord Killin went off to the RAF, only a few of us stayed on here...I'm afraid I really would need Lord Killin's permission." Later it is also made clear that the shed (where Angus hangs out and Lewis Mowbray stays) was used by his father, who was a caretaker on Lord Killin's estate.
Super Grover ★