1901 Census

In the 1901 Census of the UK, we can see Big Daddy living at 22, Penrhy Street? There’s a problem with the names listed. It shows Big Daddy and his wife Ann plus my Grandfather William, his sister Hannah, Letitia Morris (Mother in Law) and a daughter by the name of Jane who is 12 months old. I have never before heard of a daughter called Jane. Ivor should be on there too as he was born in 1899.