Operations were conducted from Lunna House, Shetland by Stephen’s father, Lieutenant Howarth, who ran the Shetland end of the operation. The crews of the Shetland Bus [Shetlandsgjengen] were men of the coast, fishermen and sailors with detailed local knowledge. Most came over after the occupation, some with their own vessels, others with vessels that were "stolen" with the owner's approval. They were young men, most of them in their twenties, some even younger.