Hi there
Realised I'm a little late for this but...
The Knowles were my grandma's family (Kathleen)
I believe we have photos of all the sisters, and my great grandmother.
I'll introduce my dad to this site. He's very interested in the family history, and knows a lot more than me about the whole thing.
I visited the street a few years back, and it was very moving. Can't imagine what they must have gone through, but my grandma would often tell me about it.
Matt