Hi Simon and Joe! It is obvious, that Messimer and other historians (for example Grant) specify, that Lütjohann were commander UB-7 on September, 27th as it is defined by the official order (and Helgason too so writes). However only the author of the given site cites biographic data of commanders of boats. Therefore there is an assumption what are right both Messimer and Helgason – officiall
Forum: WWI forum

On this site there is an information that commander UB-7 Oberleutnant zur See Hans Lütjohann was lost on August, 31st, 1916. The question – who ordered this boat in its last campaign on September, 27th, 1916? Thanks.
Forum: WWI forum

Sehr geehrt Gudmundur Helgason bezeichnet, dass der Kommandeur UB-7 Oberleutnant zur See Hans Lütjohann am 31. August 1916 umgekommen ist. Die Frage – wer befehligte dieses Boot in ihrer letzten Wanderung am 27. September 1916? Danke.
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