In the mid-1850s, the counties of Hertfordshire, Bedfordshire and
Huntingdonshire set about looking for a site for a new asylum to house
their 'pauper lunatics'. Two hundred acres of farmland at Stotfold on
the Hertfordshire--Bedfordshire border were purchased and in March 1860
the first patients were admitted to the new Three Counties Asylum (TCA).
The asylum was in operation for almost a century and a half and, as
approaches to treating mental illness changed, so did TCA.