Thank you for the reply, my great grand father lived in Spandau, Berlin, in 1914 he is living at Ackerstrasse 40 so he must have joined at the beginning of the war. I have received from the German War graves commission the following record :- Name, Ferdinand Delius, Rank, Wehermann, Unit, 3 /Brig. ers. btl. 11, Buried Vladslo. 06/06/1915, this is the correct year of death, I take it that the unit is :- Koniglich Bayerisches Brigade-Ersatz-Battalion 11. Does the uniform and record agree ?, could he have been transferred during his service ?, there is a Landwehr Brigade no. 12 in Berlin.