German biographers

Werner Karl Ferdinand Freiherr von Rheinbaben (19 November 1878 – 14 January 1975) was a German diplomat and author.Rheinbaben was born in Schmiedeberg, Silesia. He was a naval attaché to Rome during 1911–1913. He later wrote of the 1914 July Crisis that it was Wilhelm von Stumm who downplayed the possibility of British intervention and strongly advised the Chancellor Theobald von Bethmann Hollweg to act quickly. After the First World War, Stumm told Rheinbaben: "I erred in 1914 and advised Bethmann falsely".Rheinbaben was a member of the German delegation to the League of Nations.During the 1920s and early 1930s Rheinbaben was a politician belonging to the German People's Party. He was a close political associate of Gustav Stresemann and wrote a sympathetic biography of him in 1928.In 1942 and 1943 Rheinbaben worked in Portugal on matters relating to prisoners of war for the German Red Cross.In 1968 he argued against the views of those post-1945 German historians who claimed that Germany had sought world domination, writing: "Poor Germany! You honestly did not reach for 'world hegemony'!"

Rudolf Olden (January 14, 1885 in Stettin – September 18, 1940) was a German lawyer and journalist. In the Weimar period he was a well-known voice in the political debate, a vocal opponent of the Nazis, a fierce advocate of human rights and one of the first to alert the world to the treatment of Jews by the Nazis in 1934. He is the author of Hitler der Eroberer. Entlarvung einer Legende ("Hitler the Conqueror, Debunking of a Myth") which is considered part of the German exile literature. The book was promptly banned by the Nazis. Shortly after its publication by Querido in Amsterdam, Olden's citizenship was revoked and he emigrated, together with his wife, first to the United Kingdom and then, in 1940, to the United States. On September 18 both died in the U-boat attack on the SS City of Benares in the Atlantic.
He was a German Liberal of the best sort, rather more pugnacious than the average British Liberal, because he had more to fight against.

Heinrich Eduard Jacob (7 October 1889 – 25 October 1967) was a German and American journalist and author. Born to a Jewish family in Berlin and raised partly in Vienna, Jacob worked for two decades as a journalist and biographer before the rise to power of the Nazi Party. Interned in the late 1930s in the concentration camps at Dachau and then Buchenwald, he was released through the efforts of his future wife Dora, and emigrated to the United States. There he continued to publish books and contribute to newspapers before returning to Europe after the Second World War. Ill health, aggravated by his experiences in the camps, dogged him in later life, but he continued to publish through to the end of the 1950s. He wrote also under the pen names Henry E. Jacob and Eric Jens Petersen.

John Henry Mackay (February 6, 1864 – May 16, 1933) was a Scottish-German egoist anarchist, thinker and writer. Born in Scotland and raised in Germany, Mackay was the author of Die Anarchisten (The Anarchists, 1891) and Der Freiheitsucher (The Searcher for Freedom, 1921).
Later in life, under the pseudonym Sagitta, he became an advocate for homosexual love between men and boys.

Peter Bamm (a pen name; his real name was Curt Emmrich; 20 October 1897 in Hochneukirch, now part of Jüchen, Germany – 30 March 1975 in Zollikon, Switzerland) was a German writer.
Peter Bamm volunteered for military service in World War I, after which he studied medicine and sinology in Munich, Göttingen and Freiburg im Breisgau. As a ship's doctor he travelled the world a great deal before eventually settling in Berlin-Wedding.
During World War II he served as a military doctor on the Russian Front, and later described his experiences in the book "Die Unsichtbare Flagge" (The Invisible Flag). After the war he travelled for study purposes between 1952 and 1957 in the Near and Middle East, after which he wrote as a journalist and feature writer for a number of Berlin newspapers.
He is buried in the Stöcken Cemetery in Hanover.