Hi there, how lovely ! its great to find different tracks in the family tree. My father sadly recently died and my mother has alzheimers although truly remembers Llangefni and the wool shop . It was close to the time my father died in December 2011 that mum started talking about her history. She remembers that Henry Smyrna senior was quite a big character and remembered the book, it had a yellow cover. I remember at the time we did a quick google search and found it. I'll double check for you.
I live with my family in surrey now - are you doing the family tree? I'm seeing mum on Sunday and so will mention our conversations, I am sure she will be thrilled.
Regards -- Anna