South Australian Births - Index of Registrations 1842-1906 "WALKER William (M) 3 Oct 1855 Norwood dist Ade par William WALKER & Isabella OTTER b4p31".
South Australian Deaths - Index of Regisrations "WALKER William (M) 1y of Norwood d 30 Jan 1857 at Norwood rel William WALKER (F) dist Ade b5 p445".
Note: The following inscription from the family bible of William & Isabella Walker reads: "William walker died on the 30th day of January 1857 aged 1 year & 4 months". I suspect this bible entry was penned by William Walker because the entries continue in the same hand after the death of Isabella in 1902. CW May 07