Have you found this person on other census records please? Or a baptism or marriage?
Just wondering if the birth place is clearer - although I don't expect you would be asking if you had found them previously!
Sadly not. His name is Joseph Williamson and only appears to my knowledge in this 1851 census with his wife Mary (from Wales, nee Roberts) and his kids. His approximate date of birth from the census is 1795.
His wife appears on the 1841 census in Warrington (address is "back of brick street") but I've never found him on it, and it seems he dies in 1857 so no more later censuses sadly! He marries in St Elphins, Warrington in 1820, but no birthplace given.
Could you please give us the name of the person and the reference, sometimes it has been copied clearer on other sites
The transcription/reference on Ancestry for the census is here if it helps:
Name Joseph Williamson
Age 56
Estimated Birth Year abt 1795
Relation Head
Spouse's Name Mary Williamson
Gender Male
Where born F??lan, Lancashire, England
Civil parish Warrington
Town Warrington
County/Island Lancashire
Country England
Registration district Warrington
Sub-registration district Warrington
ED, institution, or vessel 1o
Neighbors View others on page
Household schedule number 91
Piece 2203
Folio 396
Page number 22