« Reply #20 on: Tuesday 17 May 16 08:54 BST (UK) »
Having read numerous Wills from this period (and for that matter other periods) over the years I would also agree that it is more than likely referring to nephew. I've never seen it used in relation to a half sibling, they would tend to use brother or sister, as they would also generally for brother or sister in law. You need to look more closely at the siblings of the Will writer. If he had half siblings any of their children would be referred to as cousins also. Unfortunately, though, they were also known to use kinsman for nieces and nephews too. It can get confusing.
The use of aunt and uncle for non-relatives is a more modern courtesy from my experience, but you can obviously get exceptions.
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