I've extracted a couple of photos from the report which I'll try and source again as they are a scan of a photocopy of a photo and therefore not exactly top quality... but, here is Herr Oberleutnant zur See Lohs in uniform.
He is further referred to in "The German Submarine War 1914-1918" by Gibson & Prendergast as Herr "Losz" which might explain why I've had a lot of trouble tracking him down. He is quoted as being known as "the blithesome spirit of Flanders" which might sound more poetic in German and is directly quoted as having said (on referring to the Dover Barrage) "Go through the barriers on the surface" and boasting "The patrols are blind. I go through under their noses"*
A captain indeed...
* "Raiders of the Deep" - Lowell Thomas