Hi Again Paul,
Looks like they had plenty of children:
1861 Census - Hospital St - Robinson
Henry, head, 35, shoemaker
Eliza, wife, 32
Elizabeth, dau, 12
James, son, 10
Ann E, dau, 8
Mary J, dau, 6
Sarah, dau, 4
Emily, dau, 1
1871 Census - Millstone Lane - Robinson
Henry, Head, 45, shoemaker
Eliza, wife, 41
James, son, 19
Mary J., dau, 15
Sarah, dau, 14
Emily, dau, 12
Alice, dau, 8
Henry, son, 6
Frank, son, 4
Blanche, dau, 1
Hope this all helps
Peter