They’re in their 80s now and, in the arrogance of comparative youth, it is difficult to imagine them other than elegantly dressed, gracious, courteous and, I guess, comfortable.
Yet, they suffered almost indescribable degradation and survived one of the most appalling episodes in history. They escaped the Holocaust, came to Australia, worked, studied and nurtured a productive and thoroughly Australian family.
Terezin, also known as Theresienstadt, was not a concentration camp in the accepted meaning of the word.
But according to Holocaust survivor and author Ruth Kluger, it was “the stable that supplied the slaughterhouse”.
The slaughterhouse was the dark domain of the extermination camps in the east – most infamously Auschwitz-Birkenau.
Of the 139,667 Jews who were sent to Terezin, about 34,396 died there. Another 86,934 were sent to the east and, according to one account, only 3586 survived.
Among those who died in the Holocaust were just about the entire family – close and extended – of my friends. They disappeared, their remains the cold ashes of the crematoria.
By virtue of their survival, my friends cannot testify to the fate of their own friends and their families.
But the weight of history and the burden of common sense, is that there was a Holocaust. There was an assembly line of industrialised murder and the systematic destruction of bodies and evidence.
There are photographs, there is film, there is meticulous Nazi documentation, there is first-hand testimony, there are ruins and – most of all – there are memories and the great voids of nothingness in the families of millions of Jews and other undesirables.
I have seen in half a dozen European cities the remaining evidence of the Nazi machinery of genocide.
The evidence is more solid, the collective memory larger, the documentation more thorough than that pertaining to the torment, starvation, brutality and slavery that beset Australian prisoners in the hands of Japan.
There is nothing to mark the martyrdom of slaves on the Burma-Thailand railway at Hellfire Pass except a cutting in the rock, yet we believe, because we trust the testimony of those who were there.
But still we are subjected to the putrid fantasies, conspiracies and inventions of Holocaust deniers, who dress their obsession in spurious science and carry it around the world to spin to those of similar gullibility and filled with the same hate.
The strength of the denial industry is growing in direct proportion to the fading first-hand memory of the Holocaust. As age takes it toll on those who suffered, the deniers are becoming bolder in their claims.
The web is awash with their nonsensical claims, their filth washes over into the literature and propaganda of extreme right and racist organisations, and they are courted and given strength by nations who cannot discern the difference between anti-Zionism and a crusade against truth.
And they gather around them fools and pawns who unwittingly give strength to their fevered fantasies.
Now we read that Pauline Hanson, a woman in search of relevance and a pay cheque, is to share a platform with a prominent Holocaust denier and neo-Nazi activist.
She will be a special guest at the Inverell Forum, a song-and-dance session for extremists, along with Richard Krege, whose speciality is bringing dodgy science into the so-called denial debate.
He recently attended the notorious Holocaust Conference in Tehran, an Iranian Government-sponsored denial talkfest, along with the equally hateful and discredited Fredrick Toben.
Krege’s speciality is using ground-penetrating radar to prove that Treblinka was not a death camp and, therefore, a large chunk of the Holocaust history is bunkum.
Toben likes defiling the ruins of Auschwitz in pursuit of his claims that it was all a scam.
Together, they trot out a scale model of Auschwitz to prove, I dunno, that they can build scale models.
They are vandals of history but, if you don’t know the truth or don’t care for the truth, they can be dangerously persuasive.
It is an important time in our history when we must forever cement the memory and the lessons of the Holocaust and stand up to those who would chip them away.
Nobody in public life – and that includes Ms Hanson – should give credibility to these noxious deniers of truth by sharing a platform, a room or even a thought with them.
If she persists in giving comfort to these people, she is either a fool or a scoundrel. I prefer to think she is a fool.