I was unable to find Henry born Buckinghamshire & Mary Berkshire in 1861. I note they moved from Blackfriars Road, St Ebbe, Oxford, Oxfordshire after 1851 and in 1871 were at Johnsons Row, Uxbridge, Middlesex. I think the one you found is them.
I did find some of the family below.
1861 - 28, Thames Street, Clewer, Windsor, Berkshire
Anstiss Whitchurch Servant Unmarried Female 20 1841 Oxford, Oxfordshire
1861 - St Martins Street, St Mary the More, Wallingford, Berkshire
Henry Whitchurch Head Married Male 31 1830 Tailor Journeyman Oxford, England
Eliza Whitchurch Wife Married Female 24 1837 Wife Leicester,
Elizabeth Whitchurch Daughter Unmarried Female 4 1857 Scholar Leicester,
Henriette Whitchurch Daughter Unmarried Female 1 1860 Wallingford, Berkshire
Emma Whitchurch Daughter Unmarried Female 0 1861 - Wallingford, Berkshire,
William Hobb Lodger Married Male 43 1818 Carrier Journeyman Standerwick, Suffolk,
Ann Hobb Lodger Married Female 42 1819 Wife Aldington, Berkshire,
1861 - Alpha Road, Upton, Eton, Buckinghamshire
Thomas W Whitchurch Head Married Male 25 1836 Boot & Shoe Maker Oxford, England
Sarah Whitchurch Wife Married Female 25 1836 Boot Closer Northamptonshire
Sarah H Whitchurch Daughter - Female 1 1860 - Buckingham, Buckinghamshire
Colin