found another tidbit of Gotenhafen lore on the weekend. (Source: Cajus Bekker, Flucht über's Meer, Ullstein Verlag, 1979, p.16)
Translation:Um 18 Uhr an diesem 4. April wird der Flotillenchef der 3. U-Jagdflotille, Kapitänleutnant d. R. Dr. Teichmann, in den Bunker "Löwe" auf Hela gerufen. Zu einer Chefbesprechung bei der 9 Sicherungsdivision. Die Würfel sind gefallen. Kapitän von Blanc teilt den versammelten Flotillenchefs ihre Gruppen zu. Teichmann ist für die Einschiffung an der Pier "Emil" zuständig, dem südlichsten Landungssteg in unmittelbarer Nähe von Oxhöft. Die Chefs der 3. Artillierieträger-Flotille, der 31. Minensuch- und der 3. Sicherungsflotille erhalten gleiche Aufgaben an den weiter nördlich gelegenen Landestegen.
On April 4th, at 6PM the commander of the 3rd sub hunter flotilla, Lieutenant-Commander (Res.) Dr. Teichmann is called to the "Löwe" bunker on Hela peninsula for a commander's conference of the 9th security division. A decision has finally been made. Commodore von Blanc allocates the groups to their commanders. Teichmann is responsible for the embarkation on jetty "Emil" the southernmost jetty in the immediate vicinity of Oxhöft. The commanders of 3rd artillery carrier flotilla, 31st mine hunter flotilla and 3rd security flotilla receive identical tasks for the jetties further north.
So now we know that there were at least four jetties on the seaside of Oxhöfter Kämpe that were available for embarkation. (It's a bit odd that the southernmost has a code name starting with E, the 5th letter of the alphabet. Perhaps one of the officers commanded two jetties very close to each other.) If we deduct the Hexengrund pier that can be ruled out according to Nora's sister this leaves us with at least two other jetties to be checked. The hunt continues.
Best regards
Torsten