Do you have a source for Thomas Unwin as a Hotelier? Perhaps there is some confusion with William's Father, James Howie.
Thomas Unwin was the Caretaker of the Kaiapoi School.
Some of the names of Elizabeth's children are "nicknames" as opposed to their proper/formal names. Olive Bobby ... is Olive Dolora.
The youngest child, Tommy, is actually Hubert Zair Howie, "nickname" - Tommy.
I can edit it if neither of the profile managers are opposed to it.
