The following is a listing in the Last Post section of the latest RSL Reveille magazine. As a result I have checked DVA Nominal Roll and Skilled Hands for further details.
Robert Norton PIERSON, R42282
6th Intake (Jan 59)
His Vietnam service consisted of:
3 x Vung Tau Trips in HMAS Melbourne (65 & 66)
3 x Vung Tau trips in HMAS Sydney - No 725 Sqd (67) as a CPOSAAW.
I have no other details. Sad to hear the news of another MOBI loss.
RIP Robert
Brian Carney
R43371
Ex-WOMTP5
22nd Mobi Intake
Jan 67 - Jan 89
RANATE, Sydney, Swan, Creswell, Stalwart (FMU), Cerberus, Derwent, Nirimba, Parramatta, Nirimba, FHQ (FMMO).
Sad news indeed. I remember Bob as a no nonsense WO who was liked and respected by all who knew him, Officers and Sailors alike sought his advice, a great mentor for the younger generations.
Age certainly does not diminish my memories of Bob, a gentle giant with a great heart.
Greg McTernan
Tracker Wacker
Brian Carney
R43371
Ex-WOMTP5
22nd Mobi Intake
Jan 67 - Jan 89
RANATE, Sydney, Swan, Creswell, Stalwart (FMU), Cerberus, Derwent, Nirimba, Parramatta, Nirimba, FHQ (FMMO).
Whilst I can't recall ever meeting Robert, it's always sad to learn of the passing of a fellow MOBI... VALE Robert, rest on your oars, your journey's done... Another MOBI taken too young... R.I.P.
Whilst I can't recall ever meeting Robert, it's always sad to learn of the passing of a fellow MOBI... 
VALE Robert, rest on your oars, your journey's done... Another MOBI taken too young...