 It has been suggested that Mackenzie was the basis for the character Mr Cathcart in D.H. Lawrence's "The Man who Loved Islands", about a man who moved to ever smaller islands much as Mackenzie moved from Herm to the smaller Jethou, but Lawrence himself denied it.The German occupation of the Channel Islands during the Second World War essentially by-passed Herm.The island was claimed on 20 July 1940 by the Third Reich, a few weeks after the arrival of German troops in Guernsey and Jersey, German soldiers landed on the island to shoot a propaganda film, "The Invasion of the Isle of Wight."