I have updated the nominal roll and obituary entries already in the archive. An interesting character indeed. I am adding below references found and if anyone else can find information with sources could they add them here:
London Gazette 36861, page 5941.
18th Nov. 1944 - 13111286 Roderick Ellerman (334987) Royal Pioneer Corps commissioned 2nd Lieutenant.
London Gazette 37908, page 1276
25 February 1947 Certificate of Naturalization granted: von Etzdorf, Rudiger Otto Ulrich (known as Roderick Ellerman); Germany; of no occupation; Browns Hotel, Dover Street, London, W.1.
Commando Association newsletter 6 issued March 1948
Roderick Ellerman of No. 1 Cdo Intelligence Section in North Africa, has now reverted to his original name of Roderick R. von Etzdorf. He has been chosen to join the group of people from which the Olympic Ski Team will be picked and is now in Switzerland training. Here's hoping we see his name in the headlines as being a member of the team.
London Gazette 39969, page 5102.
26 September 1953 Lt. R.R.O.U. von Etzdorf relinquishes commission and granted honorary rank of Captain, Royal Pioneer Corps.
Commando Association newsletter 104 obituaries issued March 1997.
Sgt. Roderick von Etzdorf (Later Ellerman) (1 Cdo) of Great Cheverell, Wilts.
The rank shown suggests that was his rank in the Commandos so where did he go when commissioned?
There are many references to a Charles Rudiger von Etzdorf who used the name Ellerman and who was instrumental in many escapes of Prisoners of War. A google search simply on the two names together Ellerman Etzdorf brings up the results which include books and documents. These include a change of name.
Does anyone know more ?