At the age of 15, Hungarian-born Alice Salamon was in a ghetto in Košice, Czechoslovakia, separated from her family. She was sent on a cattle truck to Auschwitz, then Markkleeberg and Theresienstadt, surviving a 24-hour death march.
Fourteen days before the war ended, she met a family friend who told her that her father was still alive. But it was a false hope. "I was alone. There was nobody."
Dani Jeffrey's memories of her parents have almost faded. She was five when her mother took her from their home in Paris in 1942 to live in a French farming village with strangers.
"I don't think I would remember my mother at all if it wasn't for the photos I have of her. But I remember my mother leaving me in the country with someone I didn't know. I was too small to even question why I was there. My mother paid them and used to visit once a week, which was very dangerous. Suddenly the visits stopped. When the money stopped, they started treating me very badly.
Martin Bennett, 84, attributes his survival in Auschwitz to his older brother who told him to lie about his age and skills.
Born in 1925 in Izbica Kujawska in Poland, Mr Bennett left his parents and eight siblings when the Nazis invaded in 1939, being sent to the Posnan forced labour camp. He was told that he would be able to work and earn money to send back to his family, so he was happy to go. It was only on arrival that the grim reality dawned.
Ben Helfgott went through “hell” during the Holocaust — and 70 years on, his life is still consumed by it.
Mr Helfgott, 79, was a boy when the Nazis invaded his Polish home town of Piotrkow, Lodz. He was moved to a ghetto, the first in Europe, in November 1939 and worked in a glass factory. At one point, SS guards marched into the factory and rounded up anyone they believed was Jewish. The man in charge saved his life by telling the SS men that he was Polish.