Grandad 1: Was a desert rat. He'd been in the army in the early 30s so was called up early on. He spent the war in various different places, and took his brownie camera with him, so I have lots of photos he took, some of which are very different from what you normally see. You get the men messing about, and then the next picture an army ambulance on its side having been hit and the next one the local market.
A story that he never talked about but was told to my gran after he died (at a young age-I never knew him) They were in the desert and had been fired upon for several days and many of them were getting to the end of their tether. One young lad, only about 17/18yo who'd not been out long suddenly decided to do a one-man charge towards the enemy into the mine field. That sometimes happened when the stress got too much. My grandad chased after him, tackled him to the ground and brought him back safely. He was recommended for a bravery medal, but as no officer had been present, he didn't get one.
My gran was the least sentimental of people, but she saved the telegram he sent her when he'd been discharged at the end of the way. Very basic, I have it somewhere but it says something like. "Arriving 4:42 train. Much love". The fact she kept it showed how much it had meant to her.
Gran 1: I don't really know if she did anything towards the war effort directly. I know she worked in a shop after the war, but I don't know what she did during the war. Time was very hard for them after the war and she worked 3 jobs a day right up until she retired.
Grandad 2: He joined RAFVR in 1938 because he said he saw war coming and wanted a choice what he did. He was called up immediately on onset of war and posted. He flew spitfire in the Battle of Britain. He reckoned those extra hours flying in the reserves saved his life, as later on in the war the young pilots were coming with less than 2 weeks' flying practice. They used to reckon if a new pilot survived his second sortie-and most didn't-he might survive the war.
I've a lovely copy of one of his flight reports where he's typed "I saw the EA at three o'clock and shouted, 'Tally Ho'." His CO crossed the "shouted" out and wrote "said" over the top. Obviously, this wasn't dignified enough
I can't imagine him doing this, but he'd have been about 20yo at this point, and so maybe he did! He was always very calm when I knew him.
After the Battle of Britain his flight records are patchy. He was seconded to flight test but it's not clear what else he did. There's some incomplete information eg-one of the units he was assigned to was mostly bombers, and he was a fighter pilot, and there are very few records of his flights, but I know from things he said that he was flying regularly there and brought down a few planes at that point.
I think he may have been doing secret work from a few things he dropped into conversation and some things I've recently discovered-they had a cellar built into their house after the war where he had a radio-he was a keen radio ham, for example, but there's other things that are missing from records that indicate there may have been more going on.
My mum was conceived about 3 months after D-day when my grandad unexpectedly came home on leave and told her that we were now in charge of the war, and it was a matter of time, but the top brass were now confident we would win in the end. They had a little celebration, and my mum was the result 
He loved flying and continued flying after the war as a test pilot. It was said about him at one point that if a plane existed, he had flown it, but the Spitfire remained his favourite.
Granny 2: She worked in a bank during the day, but was very active in the WVS, later the WRVS and continued to be active into her 60s. She probably talked the most about war memories when prompted and they weren't always good memories. One time the houses next door were bombed and when they dug out to try and reach the people in the cellars, they found a water main had also been hit and flooded the cellars and all the people had drowned as they couldn't get out because the houses had come down on the entrances.
But then there were things like collecting blackberries and making jam with the WI and although I don't think they had evacuees staying with them, they helped run parties and that sort of thing.
She also had a trunk full of single china items, including several teapots that didn't have handles or spouts because she lived with her sister who was a bit clumsy but they at the time couldn't get hold of new items so when the next got broken they sorted through and decided which was the least damaged to keep on using!
They got married during the war, and three of them (one of the others being Granny's sister) pooled all their clothing ration tokens to get fabric to make a joint wedding dress. They were quite different sizes so they made it so it could be taken in/let out easily.