Hi Sue
Sarah Webb's middle name:
I think that the "Hanwell" is probably Maxwell (def starts with an M ) as there's a death entry in BMD for a Louisa Maxwell W Faithfull in Mar Q 1902 age 65 at St Marylebone, London.
1851
Essex, Ardleigh 2a/24
Ardleigh Street, Parsonage
Ancestry's transcription:
Name Age
William Webb 65
Sarah M Webb 50
Mary J Farthfull 24
Louisa Farthfull 21
Ellen W Farthfull 19
Emma Farthfull 17
Mary Balner 24
Mary E Bareham 19
Sarah Holboon 30
Samuel Candlor 20
David Watson 20
WW landed proprietor b London
SMW b London
step-children all b Warfield, Berkshire
5 servants
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The 1861 ages for the daughters show that they've all managed to lose a few years !
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Jean C