I have subsequently found BRs for:

BRUCKBANK, John 64 Bri 15 May 1851
&
BRACKBANK, Catherine 69 Bri 25 Apr 1849

and in the Wills Index:
BROCKBANK, John 1851 Bra E 43 0106451
&
BROCKBANK, Jane 1823 Mau CALLOW E 0106423

I would still welcome any information on the three children of John BROCKBANK & Jane CALLOW i.e.
John (1817), William (1814 ) & Jane (1820). It appears they may have been raised in Bride.