Hi David
On the 1871 census there are 125 people named Jane Shepherd.
6 of the above are shown as being born in Berkshire, but only 2 fall within your age range from the two census ages
Jane Shepherd 9 East Hanney, Berkshire, England Daughter East Hanney Berkshire
Jane Shepherd 6 Didcot (Dudcott), Berkshire, England Daughter St Philip and St Jacob Gloucestershire
19 of them are shown as being born in Middlesex – but none in Harrow; and only 4 of them fall within your age ranges.
Jane Shepherd 5 Whitechapel, Middlesex, England Daughter St Mary Magdalen Bermondsey London
Jane Shepherd 6 Marylebone, Middlesex, England Daughter St Marylebone London
Jane Shepherd 8 Limehouse, Middlesex, England Daughter Stepney London
Jane Shepherd 7 Tottenham, Middlesex, England Daughter Tottenham Middlesex
Do any of the details above look familiar or give you 'gut feeling' - if so, I will be happy to post full details
Chris in 1066Land