I cant find any Blackberry's on the 1841 census at all.
the only possible is a Charles, who is indexed Blackbury, though the image could read Blackberry, it is very faint and hard to read. Not that the spelling really means a lot back in 1841, of course.
Anyway there is Charles, aged 29, bn Middlesex, living in Marylebone
HO107 677 2
But Charles is not any of the names you list.......
