here is the list
30 Jul 1916 U 35 Lothar von Arnauld de la Perière Britannic 3,487 br
21 Nov 1916 U 73 Gustav Sieß Britannic 48,758 br
1 Jan 1917 UC 37 Otto Launburg Britannic 2,289 nw
13 Dec 1917 UB 31 Thomas Bieber Britannic 92 br
br means British and nw means Norwegian
