I believe the Thomas James HUGHES at 33a Cannon St., is the son of TJ & ME HUGHES. (just confirmed by Cando)
There are records on NAA, he was born 4.10.1914 LONDON, NOK Mary (mother), Dale St address.
He served on the Cerberus for about 9 months but was discharged 1940.
In 1943 at 33 Cannon St., there is also:-
Desmond Michael HAMDEN - ships fireman
Joyce May HAMDEN - home duties
Joyce's maiden name was LINDSAY and she lived at Dale St., Pt Adelaide when she was engaged in 1939, so maybe the families knew each other. In 1943 Desmond was lost in action, drowned at sea. I can't see his WW2 service record but his wife and mother applied for Mothers and Widows badges.
Cyril James HARTLEY was also at 33 Cannon St., (labourer).
Just mentioning all this in case something connects for you.
Sashar