When you do your research write down whatever interests you. Whatever stimulates your imagination. Whatever seems important. A story is built like a stone wall. Not all the stones will fit. Some will have to be discarded. Some broken and reshaped. When you finish the wall it may not look exactly like the wall you envisioned, but it will keep the livestock in and the predators out.
Peak (ed. Houghton Mifflin Harcourt, 2008) - ISBN: 9780547417172