I have just started the search of my ancestry and like a lot of others believe Tom Sayers was part of the tree.
I have several pieces of memorobilia from him including a bust,(one of 2 the other was in the Cafe Royale in London), a pendant from his watch chain with a photo inside, trophy and pictures.
I cannot give to much details but believe that "Powell" was part of the line. It was rumoured to be part of the surname. My father was born in 1910 one of seven children. Peter, Douglas, Arthur, Rose, Evelyn, Violet. The other died young and I have forgotten the name. All are from the Camden Town area
I would appreciate more information and as I gather more will gladly post it