I have found a distant ancestor on the 1841 census in "The Retreat or Licensed Asylum for the cure of Insane Persons". The location is Wortley - Parish of Leeds. There are 16 patients, a superintendant, matron and 6 staff. This makes up the entire census so there are no clues as to the roads around the establishment to show where it is.
On the 1851 census it seems to have become "Castleton House Asylum", having the same superintendant, but Inmates are now referred to as "lunatics" rather than "patients" as in 1841, when it seems they were treated much more sympathetically. Looking at the census it seems to be in the Botany Bay area of Wortley.
I have tried google and can only find the "Retreat" in York - a Quaker establishment, created for the care of individuals with mental health issues. I assume that the two are connected but can find no records for the Leeds asylum or Castleton House.
I wondered if anyone could provide more details?
Thank You.