This is a list of everything that has been written in the Turner series. It’s listed in chronological order, but you’ll note that chronological order is not the suggested reading order.
Who: A short between Smite Turner and Richard Dalrymple.
How: It’s set before Unveiled, but you should read it after. Not intended as a stand-alone.
Who: Richard and the rest of the Turner clan.
How: Set just before Unraveled, and sets in motion one of the subplots you see in Unraveled. Definitely read Unveiled first, and probably Unclaimed.