It is better if you put all your questions on the same thread, Tirpitz.
You should also put the name of the quiz and the closing date in the heading.
Having said all that, I'm sorry I don't know the answer to your question.
As the question relates to "families" plural, it is not likely to be a husband and wife. I am just wondering if it is something totally different, eg something silly like Caithness and Angus ospreys!
............but I have no idea, just something for someone else to think about.