Hi
I have looked up Sarah Louise Allen in 1891 and there is only one born Newcastle and living in Newcastle Under Lyme. All children were born Newcastle Staffordshire
address 5 Milners Row
Henry J Allen, age 40, general labourer born Staffordshire Newcastle
Mary H Allen, age 39 born Staffordshire Bilston
Benjamin Allen, age 17, roller ironworks
Sarah L Allen, age 14, transferer
William N Allen, age 8 scholar
Eleanor Allen, age 4
Harry Allen, age 15, general labourer
RG12/2148
ed 6 folio 115 page 6
civil parish of Newcastle Under Lyme
Hope this helps
Nicky