An even longer shot. Just wondered about it as the family clearly moved around a bit and ended up in Leeds. Could have been some confusion with the name spoken in a broad Norfolk accent to someone in Yorkshire perhaps?

Jan
Household:
Name Relation Marital Status Gender Age Birthplace Occupation Disability
Philemon RUMP Head M Male 35 Norwich, Norfolk, England Joiners Foreman
Elizabeth J. RUMP Wife M Female 34 Roughton, Norfolk, England
George W. RUMP Son Male 13 Cambridge, England Scholar
Philemon J.W. RUMP Son Male 11 Cambridge, England Scholar
Rosanna E. RUMP Daur Female 9 Roughton, Norfolk, England Scholar
Laura E. RUMP Daur Female 7 Norwich, Norfolk, England Scholar
Arthur N. RUMP Son Male 1 m Leeds, York, England
Source Information:
Dwelling 16 Peel St
Census Place Hunslet, York, England
Family History Library Film 1342074
Public Records Office Reference RG11
Piece / Folio 4486 / 72
Page Number 22A