Hi,
I think you are correct Wendy that the records have only just been put on the 1911 census, as I couldn't find 3 children originally; the other 4 were living with their mother in Hull, their father sadly died in 1908.
I have now found the other 3 children, one is definitely in the Orphanage and the other 2 are listed in an institution, which I presume will be the same Orphanage - have run out of credits at the moment to be sure!
Cannot wait for Hull Archives to reopen in September!
Kath