Think I've sussed it - have spent quite a long time today on this knotty problem, partly caused by births not being registered, change of name (on census anyway), incorrect ages and birthplaces!
Richard Davenport bc.1889 is indeed the one previously mentioned on here with mother Jane (in 1901) and George and Jane in (in 1891).
Stepping back a bit, James Davenport 19 Hawker, son of William Davenport, Carter married Jane Wheeler 19, dau. of Samuel Wheeler, Boatman, on 3/6/1880 Ancoats, St. Jude, Lancashire.
Can't find them in 1881 but 1891 shows them with 4 children all born Manchester:
William bc.1881 - birth reg'd Dec.80 Prestwich - mmn Wheeler (think he died 1891-1901)
Samuel bc.1883 - birth reg'd Sept.83 Prestwich - mmn Wheeler
Hannah bc.1888 - not registered
Richard bc.1889 - not registered
followed by the following by 1901:
Mary J. bc.1891 - not registered
Alice bc.1893 - not registered
Emily bc.1896 - not registered - believe died between 1901 and 1911
Lydia bc.1899 - not registered - believe died between 1901 and 1911
There was another child who died - John James birth reg'd Mar.1886 Chorlton (mmn Wheeler), death Mar.1887 Manchester - making 9 children in all.
Hannah is Hannah in 1891 and 1901 but is 'Annie' on the next census - believe it is she who was a witness at Richard's marriage.
I seriously think that they didn't register deaths either - can find no obvious death for father James (or even George) nor for son William and daughters Emily and Lydia!! No 'events' registered after death of son John James in 1887.
Father James Davenport's birth reg'd Sept.1862 Manchester, mmn Harrop.
1871 Census - 14 Arundell Street, Manchester
William Davenport 40 something (hard tgo read) Carter born Oldham, Lancashire
Sarah Davenport 45 born New Shields, Derbyshire
Elizabeth Whitehead 23 dau. married
Mary Ann Bonynge (surname hard to read) 20 dau. married
Andrew Davenport 18
Willie Davenport 16
Josiah Davenport 14
James Davenport 11
1861 surname transcribed as Devonport and in 1851 as Devenport.
William Devonport married Sarah Harrop 24/2/1845 Staleybridge, Cheshire - children were:
Elizabeth bc.1846 Ashton under Lyne (can't find birth regn.)
John birth Sept.1848 Ashton under Lyne - mmn Harrop
Mary Ann birth Sept.1850 Manchester - mmn Harrop
William (b.1851 in 1861, b.1855 in 1871??)
Andrew birth Dec.1852 Mancheter - mmn Harrop
Josiah birth Mar.1859 Manchester - mmn Harrop
James birth Sept.1862 Manchester - mmn Harrop
I suspect you are going to have 'fun' working on the Davenport's - be prepared for name variations and also for the inaccurate ages often given.
Annette