Index to Unassisted Inward Passenger Lists to Victoria 1852-1923 http://prov.vic.gov.au/index_search?searchid=23
GILES, WILLIAM 33; SEP 1864; PRINCE RUPERT Port B Fiche 236 Page 001
GILES, HANNAH 28; SEP 1864; PRINCE RUPERT Port B Fiche 236 Page 001
And Henry-
GILES Henry. Aged 5.Date Sep 1864. Ship Prince Rupert.
B 236 001.
Sue
Sue
I think William arrives on board the Northumbria
Thanks for all the reseach!!!!
Cheran 
Yes, and the above is another of the "William GILES and Hannah" couples arriving.