I read the rest of your message and found some more.
In 1881, Hannah was a servant in Yorkshire.
Name: Hannah D. Houghton
Age in 1881: 17
Estimated birth year: abt 1864
Relationship to head-of-household: Servant
Gender: Female
Where born: Garthorpe, Lincoln, England
Address: Cottage
Civil parish: Airmyn
County/Island: Yorkshire
Occupation: General Servant
Source information: RG11/4701
Registration district: Goole
Sub-registration district: Goole
ED, institution, or vessel: 1
Folio: 11
Page: 15
And here might be her father and maybe mother-
Jemima Houghton abt 1843 Adlingfleet, Yorkshire, England Wife Garthorpe
Stephen Houghton abt 1835 Garthorpe, Lincoln, England Head Garthorpe
Sarah L. Precious abt 1869 Bankside, Yorkshire, England Step Daughter Garthorpe
Address: In Lincoln
Civil parish: Garthorpe
County/Island: Lincolnshire
Condition as to marriage: Married
Occupation: AG Lab
Source information: RG11/4700
Registration district: Goole
Sub-registration district: Swinefleet
ED, institution, or vessel: 6
Folio: 90
Page: 28
Here is James Gravil in Lincolnshire in 1881
James Gravil abt 1856 Epworth, Lincoln, England Head Epworth
Mary Ann Gravil abt 1856 Market Downham, Norfolk, England Wife Epworth
Address: Piffilside Ivy Cottage
Civil parish: Epworth
County/Island: Lincolnshire
Condition as to marriage: Married
Occupation: Ag Lab
Source information: RG11/4696
Registration district: Thorne
Sub-registration district: Epworth
ED, institution, or vessel: 3
Folio: 48
Page: 1
Here is the son Richard Gravel in 1881-
Name: Richd. Gravell
Age in 1881: 19
Estimated birth year: abt 1862
Relationship to head-of-household: Servant
Gender: Male
Where born: Epworth, Lincoln, England
Address: Cottage
Civil parish: Airmyn
County/Island: Yorkshire
Occupation: Farm Servant (Indr)
Source information: RG11/4701
Registration district: Goole
Sub-registration district: Goole
ED, institution, or vessel: 1
Folio: 11
Page: 15
Hope this helps with your search, Kristin