SOURCES: Gudmundur Helgason, Rainer Kolbicz, www.uboat.net, 2011, Kenneth Wynn, U-boat Operations of the Second World War, Volume 1 and Volume 2, 1997
Patrol four into the region was merely a transit of the southeastern extreme of the area – U-67 under Günther Müller-Stockheim ducked into the Anegada Passage between the 11th and 12th of February 1942 and did not return through the area. Like the skippers of all patrols covered so far, he both left from and returned to Lorient, France; U-67 was a member of the Second Flotilla based there.
Müller -Stockheim was aged 27 at the time, and on this patrol he would sink the Kongsgaard (16 February) and Penelope and damage the Rafaella in the Caribbean, for a total of over 21,000 tons. A member of the Class of 1934, Müller-Stockheim was a Kapitänleutnant at the time but achieved Korvettenkapitän a year later. He ended his career with the prestigious Knights Cross, and was killed in the Central Atlantic on 16th July 1943 when aircraft from the escort carrier USS Core caught U-67 in the Sargasso Sea (three survived).
Over his career Müller-Stockheim is credited with thirteen ships of 72,138 GRT sunk and five ships of 29,726 damaged. He would return to the Bahamas region in just a matter of three months, in transit for a highly active patrol in the US Gulf. Following that patrol, in October 1942 he would also return to the Caribbean off Trinidad for more patrols in the Western Hemisphere.
This patrol began on the 19th of January 1942 in Lorient and ended there on the 30th of March. The U-boat skipper was aggrieved to learn that several well-aimed torpedo salvos resulted in dud missiles. On the 16thof February U-67 was unsuccessfully bombed by a USAF A 20 aircraft (Wynn, Vol. 1, p.48).