Hi, I wonder if anyone could help me?

I’m trying to unravel something of a family mystery…
I am told that my grandfather, who was one of twelve, had a brother who was placed into care as he suffered from epileptic fits, as well as other disabilities.
No one knows anything about him really, other than he was placed in a home/institution possibly called
Blackburn Whalley (I think that’s the correct spelling), which I presume was in the
Blackburn area of Lancashire, although the family were from Liverpool. We have no idea when he died, but it was presumably as a child, although the death registers have not yet revealed anything, having searched right through to the 1960’s.
He was in 1917, so this must have all taken place from then onwards. Both his parents had passed away by 1927, so if he hadn't died by then, I'm wondering what might have became of him.
Does anybody know of a home/institution of this name or one that was in the area which might act as a starting point for my research?
Any help would be appreciated.
Regards
Paul