Fredrick Roberts Clayfield was the brother of my gggm Elizabeth Roberts Clayfield both born in Chepstow. Their parents were John Canning Clayfield and Elizabeth Roberts. That is as far back as I have gone. Elizebeth R Clayfield married Abraham Bryant and lived in Bristol. If you have any further info please share. I have a copy of Fredrick Roberts Clayfield birth certificate which I can send if interested. Thanks Sean Hegarty.