Hi Darci,
It's worth spending time doing searches at
www.familysearch.com .
There's probably more available through LDS Family History Centres, but I did find Eliza and Levi's indexed 1881 census entry via the website. Eliza was reported to be age 29, born in Heighington - Levi was the one from Donnington - and from their children's birthplaces, it looks like the family moved around a lot:
Household:
Name - Relation - Marital Status - Gender - Age - Birthplace - Occupation
Levi LEWIS - Head - M - Male - 36 - Donnington, Lincoln, England - Labourer
Eliza LEWIS - Wife - M - Female - 29 - Heighington, Lincoln, England
Almira R. LEWIS - Daur - Female - 10 - Rutland, England - Scholar
Charles T. LEWIS - Son - Male - 7 - Swaby, Lincoln, England
Laura LEWIS - Daur - Female - 4 - Skellingthorpe, Lincoln, England
--------------------------------------------------------------------------------
Source Information:
Dwelling 59 Cross Street
Census Place Lincoln, Lincoln, England
Family History Library Film 1341772
Public Records Office Reference RG11
Piece / Folio 3239 / 137
Page Number 88
Regards,
Claire