Forging historical fiction when facts differ — or are scarce

..In response to a question on a historical fiction list about forging fiction from little fact (or from differing "facts"), historical author Elizabeth Chadwick posted this wonderful answer:

You do as much background research as you can, both the narrow and the broad, into the person, their lifestyle, and the times in which they lived.

If there's not a lot available about them, then you research the people who interacted with them — their lifestyles, and the people who in turn interacted...