I'm currently researching the journey made by U-19 which brought Roger Casement to Ireland in 1916. It departed Heligoland on the 15th of April 1916. It dropped off Roger Casement on the 21st April 1916 to Banna Strand in Ireland. The U-19 commander was Raimund Weisbach.
I understand there are several photographs taken on that particular journey in 1916. Would anyone have any information on that U-19 mission or know where I might be able to locate any relevant photographs or anyone I could contact?
Any help would be much appreciated!