IMAGES OF WAR. 1939-1945. Issue 17, Volume 2. The Real Story of World War II. Dieppe. 19 August 1942. It contains some parts of a book, written by a German officer Richard Schnösenberg. He stated that the British requested (via radio) to send their representatives for participation in the funeral for the fallen. The Germans alowed to send them by plane with Red Cross markings. There is no info on the actual British "visit", and he wrote, that the RAF did not bother them during the burial/funeral. All sounds a bit vagie: please, clarify it...
Very uncharacteristic of British government policy, however, given that the cemetery is unusual in it that is a CWGC model memorial site created by the German army and CWGC staff were allowed to operate unmolested in France and Belgium throughout the German occupation it is possible that the CWGC were asked to assist.
This appears to be contrary to the information on the CWGC website which says CWGC (or IWGC as it then was) staff were either evacuated at Dunkirk or interned. Perhaps the quote refers to the locally employed ground staff but I'm not sure where the funds to pay them would have come from. The story of CWGC staff rescued and left behind in the Dunkirk Evacuation Tim
I would have thought your best route to answer your question would be to contact the CWGC and ask them directly TD
Not all of those on the raid were buried at Dieppe. Cemetery was completed in 1949 designed by Phillip Hepworth . No grave concentrations available but costings dated 1949 in the Archive. Built by the Germans remodeled by the CWGC immediate post war MLU - Dieppe Liberation 1944 Kyle
CWGC staff maintaining WW1 cemeteries continued to operate throughout the war and whilst some were French or Belgian citizens others were British. Hitler specifically issued an order that they should be allowed to continue. BTW Dunkirk did not see the complete evacuation of British personnel from France. Significant numbers were evacuated some weeks later from ports further south. Some like my aunt journeyed down after the French surrender and crossed the Spanish border and came home from Portugal (she was married to an American and had a US passport as well as a British one which would have made it easier)