The Question and Answer section for The Book Thief is a great resource to ask questions, find answers, and discuss the novel.
Most citizens were civilians so they had various jobs. I'm not sure what you are asking here.
From the text:
I think her mother knew this quite well. She wasn’t delivering her children to the higher echelons of Munich, but a foster home had apparently been found, and if nothing else, the new family could at least feed the girl and the boy...
I'm not sure what chapter this is but Hand Jr. Wants his father to join the Nazi party.