Maximillian Boering Godwin was the wealthy grandson of a former slave owner in South Africa in the 1950s. He was still a fairly racist man and was one of the architects of the apartheid regime which kept black people separate and powerless.
Being a powerful and well connected man he was approached by two men who were selling NAZI secrets from the war. They had heard that his wife had terminal cancer and it was known that it ran in the family, possibly threatening his two daughters in the future. They needed funding to develop their prototypes into working products.
He was shocked to see that one of these men was ADOLFUS HITLER.
HITLER had escaped Berlin in 1945 with the latest advances in NAZI super science, these inventions had been discovered through horrific human experiments and were unable to be put into use since more time was needed to create working prototypes and too many facilities had been bombed.
This included a cure for genetic damage due to thing like aging and cancer, as well as the theories behind nuclear fusion reactors which would provide limitless clean energy.
Max Godwin said that he would rather that his entire family died of cancer before supporting anything which HITLER and the NAZIS had touched. He turned them into the authorities and gained quite a bit of political power over the next few months, his enjoyment of this was cut short by the tragic death of his wife from her cancer though.
Max Godwin died in 1986, he had no grandchildren since his daughters followed their mother and died of ovarian cancer. His legacy was his school for poor white children with it's grand library on the coast near Cape Town, it has recently been suddenly overtaken by the sea due to global warming - several children and all books lost to the waves.
Hitler was traded to Israel by the South African government for nuclear weapons. He is immortal now and nothing Mossad can do will harm him, they now use him as a scientist (he learned a lot in his years of exile with those NAZI super science documents) maintaining their secret weaponry and fusion reactors.