Greeting's again Heather....
The plot thichens then....

Willougby is not in my 1841,51,61, 91
Census returns for Leicestershire....
From Nottinhamshire Parishes Districts.....
Loughborough
Created 1st July 1837. Mainly in Leicestershire, but included parts of Nottinghamsire.
Sub-districts : Leake; Loughborough.
GRO volumes : XV (1837-51); 7a (1852-1930).
Costock, East Leake, Normanton on Soar, Rempstone, Stanford on Soar, Sutton Bonington, Thorpe in the Glebe, West Leake, Willoughby, Wysall.
Registers now divided between Leicestershire and Rushcliffe districts.
Sorry just did a search on my parish locater and it's telling me it's Nott's
MIKE.