Nearly right. Glen was always thought to be my mother's brother, therefore my uncle. But found out later in life he was my mother's cousin. His mother, my Grans sister, died giving birth to Glen so he was brought up by my Gran and Grandpa, my mother's parents. We were in fact 1st cousins once removed.
You are from South Wales. I was in contact with someone from your family a few years ago.
Regards Gerry