In 1871 census, Samuel Warrener shows born c1841 Elston, Nottinghamshire.
1841 census shows him at Elston aged 7 months with Robert Warrener 47, wife Elizabeth 45,
and children Ann 19, John 13 and Eliza 10. Without relationships I'm dubious whether
Samuel is a son of Robert & Elizabeth, or perhaps an illegitimate son of Ann.
This is compounded when I can't find him in 1851 or 1861. If Ann married he may be
listed under her husband's name.