Have you tried: www.freebmd.org.uk
Has records for Daniel Grady's from 1842-1960, also death's if you know where about - London.
There is a 1871 UK Census which identifies only irish born persons:
9 Daniel Grady's, born Ireland
Daniel Grady 46, Robert Street, Mile End Old Town, London-Middlesex the rest are all over. There is also a Kent, England Daniel Grady in the military 34th. Foot?