I would think that these photographs were taken in Holland by British troops after the surrender of German forces. The V2 rocket shown here is the mobile type which became a particular problem for Allied aerial intelligence in Holland to pinpoint them.As it was they were extremely mobile and could be moved as the battlefield situation demanded which enabled the Germans to fire them until late March 1945.Secluded sites such as forests were the ideal areas for mobile missile launching.These sites could be evacuated after a series of firings and the mobile V2 launch unit moved to another site. Static sites could be bombed if they could be located.One action to negate the German ability to wage war by rocket was the decision taken by the Allied air command to identify the supply component chain such as liquid oxygen manufacturing centres and eliminate these. The last photograph appears to show a permanent building which looks to have a shuttered air intake...never seen such a construction associated with a static V2 launch installation but it could be control centre/shelter of some description.
Way out of my depth here but apparently the Allies tested them in October 1945. http://www.iwm.org.uk/collections/item/object/205212899 Similar pine trees? Similar construction on LHS as in your first photo? THE V WEAPONS PROGRAMME IN GERMANY DURING THE SECOND WORLD WAR (BU 11148)
More information here on Operation Backfire, note photo of same shelter as in your last image. V2ROCKET.COM - Operation Backfire at Cuxhaven/Altenwalde
It looks like the photographs presented are related to Operation Backfire backed up by a very informative article on Backfire.
V2 on display in Adelaide, South Australia in February 1948 after arriving from the Westcott facility in the UK following Operation Backfire
I think we can all guess what the chap in photo 2 was doing, but is that the result in photo 3 - all his own "work" or have the others contributed? Should have joined the "Pee on 'ere" Corps!
Thanks for all that Contributed, the Gentleman had been given some photos on the eve of his Mother entering a home. As usual his Father never mentioned WW2. only that he had been in the RE. He is very happy to know that his Dad might have been part of Backfire, and thanks you all for your expertise!
It does seem sad that Dad's never talked to their children much about "their" War. All I knew of my father's service during his lifetime was when he had an old service pal round for drinks and after a few stories would come out but always humour, sometimes black, but mostly against himself; how whenever he was promoted he would go out on a bender and be busted back down again, or being taught to drive and "hitting the only tree in the desert". I did know he'd had ear damage at Anzio from Anzio Annie but that's about all. When I applied for his Service Records, much more was revealed. He wasn't a hero, as RAMC I didn't expect that, but "he did his bit". Always said that the Army was his salvation, out of Liverpool slums and potential life of crime (well, nicking things to help the family stay alive) and into a life that suited him. One thing he did instil in me was that "do better than me, that's all I ask". ... and I think I did.