Hi Jarmo
No, I did not know anything about William Nell but I do now.
1861 He was living at Smithies, Monk Bretton Barnsley with his father George age 57, a Hand Loom Weaver and his mother Sarah aged 56 and three siblings. William aged 24 was a Power Loom Weaver and married his wife Sarah in Barnsley in about March 1856. She is not shown on the 1861 census as living with the family.
In the 1861 census Sarah aged 24 a Power Loom Linen Weaver is shown as a Lodger also in the Smithies with the family of Abraham Shaw a Coal Miner. Possibly the house was not big enough.
Hope this information helps
Steve