NSW Death 210/1874 WALKER WILLIAM J - JOHN - CHARLOTTE - SYDNEY
Empire (Sydney, NSW) - Thu 5 Feb 1874 p.1
DEATHS
On the 3rd February, at his late residence, 48 Fitzroy-street, Chippendale, William John Walker, eldest son of John Walker, of Paddington.
I can't find a Funeral notice in Trove...