ok this is what I have. If anyone wants to see the full details please let me know. The attached is the wording from the grave but the details (apart from my grandfathers) are incorrect so ages are approximate. There is a reason for the letters in brackets.
John OD (E) marriage cert, death cert, census 1911 married Hanorah Leary (F) marriage cert, death cert, 1911 census. Neither on 1901 census
Children of above
William (N) birth cert, marr cert, death cert, 1911 census, not on 1901 census
Daniel (O) marr cert, death cert not on any census
Michael (P) death cert, inquest murdered not on any census
John (Q) nothing known on this son only rough age from grave
Patrick (R) birth cert, marr cert, death cert, army details, 1911 census, not on 1901 census
James (S) nothing known on this son only rough age from grave
Jeremiah (T) birth cert, marr cert, death details, 1911 census, not on 1901 census
Mary (U) rough age from grave, marr cert, death cert, not on any census
So this covers John and Hanorah O'Driscoll and their 7 sons and 1 daughter. Finding any of them on census would be great or better still finding the births of those listing above as unknown.
Any help appreciated and my apologies for not getting back sooner but I've had a horrible virus.
Thank you everyone