Peter Rayner, former chief operating officer of British Rail, has been critical of Ronnie Biggs in the past, but expressed sympathy for his family.
Mr Rayner said:
My view is that whilst I was - and am - critical of the Great Train Robbers and the heroes' welcome they got, especially in light of the death of Jack Mills, my sympathies go out to his family and I would not wish to speak further on the subject.
The Great Train Robber Ronnie Biggs who won worldwide infamy for spending 36 years on the run after escaping prison, has died aged 84.
About one month after the robbery, Biggs and other members of the gang were tracked down by police.