Walter was born at Crick, Northumberland in 1884, to parents George and Ellen Mawbey (nee Mawse [Morse?].
His father was a wheelwright.
Walter was 16 when he arrived in Australia.
He married Ethel Agnes Bushell at Bankstown, a suburb of Sydney, in 1914 at the age of 31.
The couple had two daughters, Beryl E (b.1916) and Joyce A (b.1919).
Walter died of heart disease on 27 February 1945 at a home at Hurstville, a southern suburb of Sydney, where his brother also lived.
At the time he was a machinist and invalid pensioner aged 61.
Charles married Mona Owena Howker in 1916 at Newtown and died in 1956 at Rockdale.