This post contains a known varient of Downhill, that being Downing.
No known relationship is known, posted here in hopes of helping someone.
Please, if you find something here, post a reply to enhance our research.

Name Age in 1871 Birthplace Relationship Civil Parish County

Emanuel Downing 28 Hyde, Cheshire, ENG Lodger Ashton under Lyme Lancashire
Name: Emanuel Downing
Age in 1871: 28
Estimated birth year: 1843
Relation: Lodger
Gender: Male
Where born: Hyde, Cheshire, England
Civil parish: Ashton under Lyme
Ecclesiastical parish: St Michael
Town: Ashton under Lyme
County/Island: Lancashire
Country: England
Street address: 36 Scotland St.,
Condition as to marriage: Mar
Employment status: Emp.
Occupation: Cotton Piecer
Source information: RG10/4070
Registration district: Ashton Under Lyne
Sub-registration district: Ashton Town
ED, institution, or vessel: 11
Folio: 59
Page: 2
Household schedule number:
Household: other family members - boarders
James Blake 35 Sligo, Ireland Head Ashton under Lyme Lancashire, Card Grinder & Licensed Lodging House Keeper
Emanuel Downing 28 Hyde, Cheshire, ENG Lodger Ashton under Lyme Lancashire, Cotton Piecer
Harriet Downing 23 Manchester, Lancashire, ENG Ashton under Lyme Lancashire, Throstle Spinner Cotton Mill
Harriet Downing 9 months Wigan, Lancashire, ENG Ashton under Lyme