There are two Bennett's listed in the online telephone directory for Athy, Kildare, no Joseph and I'm sure that Bernadette probably married. However, your best bet is to write to the two Bennett's
The only Benette listed was for Dublin.
Its hard to trace people after the 1901/1911 census.www.census.nationalarchives.ie
Peter Bennett Maynooth, Kildare - 2 x age 12 in 1911.
1) 10 School Lane, father Christopher, mother Anne
2) 9 Double Lane, nephew of James Murphy mother Mary