Paternal grandfather had some sort of white-collar job. Insurance or something. Maternal grandfather (and grandmother) worked for a terracotta manufacturer. A clay pipe fell on Grandad's back, breaking it when he was 19. He got about £100 compensation (it would have been more had he not been a minor) and got out of active service during the war. He manned searchlights somewhere in the English midlands. He's 94 this August. His father was a miner and made fireworks as a hobby (which led to him losing a hand). Nan's father was a man of mystery - also a miner, he claimed to go to Canada for work yet there is no record of him in any passenger manifest. His missus had a baby while he was away. He didn't seem to mind and they had a few more kids when he got back from wherever he'd been (prison, I'm guessing).