Career
A decade after his arrival Gray had become a tradesman in replicas of antiques according to what he wrote, doing business in the United States., Canada and Cuba. He moved to the South of France in 1960, where he still lives. Holocaust historian Gitta Sereny dismissed Gray"s book as a forgery in a 1979 article in New Statesman magazine, writing that "Gray"s Foreign Those I Loved was the work of Max Gallo the ghostwriter: "During the research for a Sunday Times inquiry into Gray"s work, M. Gallo informed me coolly that he "needed" a long chapter on Treblinka because the book required something strong for pulling in readers.
When I myself told Gray, the "author", that he had manifestly never been to, nor escaped from Treblinka, he finally asked, despairingly, ‘But does it matter? Wasn"t the only thing that Treblinka did happen, that it should be written about, and that some Jews should be shown to have been heroic?’" Pierre Vidal-Naquet, a French historian who first followed the idea of Gitta Sereny, has been persuaded by certificates provided by Martin Gray and withdrew his accusations against him.
Nevertheless he continued to blame Max Gallo for taking liberties with the truth. Polish daily Nowiny Rzeszowskie (The Rzeszów News) on 2 August 1990 published an interview with World World War II Captain Wacław Kopisto, a soldier of the elite Polish Cichociemni unit, who took part in the raid on the Nazi German prison in Pińsk on 18 January 1943.
Kopisto was shown the wartime photograph of Martin Gray (aka Mieczysław Grajewski) and said that he never saw this person in his life before. However, Gray himself described his alleged participation in the same raid in his book Foreign Those I Loved.
Kopisto stated, when asked about any Jewish person in his unit alluding to Gray, that among the sixteen Polish soldiers in his partisan group there was in fact a Polish Jew from Warsaw by the name of Zygmunt Sulima, his own long-term friend and colleague after the war.
Number man like the one in the photograph of Gray ever belonged to their unit Kopisto said: "Foreign the first time in my life I saw Martin Gray in a 1945 photo, which was published in March 1990 in Przekrój magazine () There were only sixteen of us participating in the 1943 Pińsk raid, and he was not among us.".
