Thank you so much for replying so promptly. I have puzzled over William and Bridget's children for a while now. i have managed to establish that they had 8 children. Alice, Robert, Mary, Amelia, Sabina, William, Thomas and John W. Alice is with her parents on the 1851 census and again in 1861 along with Robert, Mary and Amelia. In 1871 there are no children present and then in 1881 after Bridget's death Robert, Sabina (Lavinia on the census / Sabina on the baptism record) thomas and John W. There is a record for Alice (at least someone whose details fit) in 1881 living with her sister Mary Edmondson but there seems to be no record of a marriage for mary other to a Fred Edmondson Spencer and this of course may not be the right Mary. Anyway, you can see my tree for all the detail, such as it is!