Question: Were both Anne Frank and L. Ron Hubbard Americans?
Context: Scientology in the United Kingdom is practised mainly within the Church of Scientology and its related groups which go under names including "Hubbard Academy of Personal Independence" and "Dianetics and Scientology Life Improvement Centre".  The national headquarters, and former global headquarters, is Saint Hill Manor at East Grinstead, which for seven years was the home of L. Ron Hubbard, the pulp fiction author who created Scientology.  Church-connected groups promoting aspects of L. Ron Hubbard's teaching, including Narconon and CCHR, have also been active in the UK, in some cases with charitable status.  There have also been groups practising Scientology independently of the Church. Brain-Washing: A Synthesis of the Russian Textbook on Psychopolitics, sometimes referred to as The Brainwashing Manual, is a book published by the Church of Scientology in 1955.  It purports to be a condensation of the work of Lavrentiy Beria, the Soviet secret police chief.  The book states Kenneth Goff as author.  Its true authorship is not clear, the three common hypotheses being: Scientology founder L Ron Hubbard, Kenneth Goff (alias Oliver Kenneth Goff), or both L Ron Hubbard and Kenneth Goff based on an acquired US agency report.  The third hypothesis is questionable as there is not proof that the two men ever knew each other.  Claims that L Ron Hubbard was the author are also dubious as the only source of this claim is his estranged son, L Ron Hubbard Jr., who made it his life work trying to intentionally discredit his father in every possible way, and in addition to withdrawing all his accusations before his death, has been discredited in courts of law. Annelies Marie "Anne" Frank (] ; ] ; 12 June 1929 – February or March 1945) was a German-born diarist.  One of the most discussed Jewish victims of the Holocaust, she gained fame posthumously following the publication of "The Diary of a Young Girl" (originally "Het Achterhuis"; English: "The Secret Annex" ), in which she documents her life in hiding from 1942 to 1944, during the German occupation of the Netherlands in World War II.  It is one of the world's most widely known books and has been the basis for several plays and films. Bare-faced Messiah: The True Story of L. Ron Hubbard is a posthumous biography of Scientology founder L. Ron Hubbard by British journalist Russell Miller.  First published in the United Kingdom on 26 October 1987, the book takes a critical perspective, challenging the Church of Scientology's account of Hubbard's life and work.  It quotes extensively from official documents acquired using the Freedom of Information Act and from Hubbard's personal papers, which were obtained via a defector from the Church.  It was also published in Australia, Canada and the United States. Lafayette Ronald Hubbard (March 13, 1911 – January 24, 1986), better known as L. Ron Hubbard ( ) and often referred to by his initials, LRH, was an American author and the founder of the Church of Scientology.  After establishing a career as a writer, becoming best known for his science fiction and fantasy stories, he developed a system called Dianetics which was first expounded in book form in May 1950.  He subsequently developed his ideas into a wide-ranging set of doctrines and practices as part of a new religious movement that he called Scientology.  His writings became the guiding texts for the Church of Scientology and a number of affiliated organizations that address such diverse topics as business administration, literacy and drug rehabilitation.  The Church's dissemination of these materials led to Hubbard being listed by the "Guinness Book of World Records" as the most translated and published author in the world.  The Guinness World Record for the most audio books published for one author is also held by Hubbard.  In 2014, Hubbard was cited by "Smithsonian" magazine as one of the 100 most significant Americans of all time, as one of the eleven religious figures on that list. The Short Life of Anne Frank (Dutch: "Het Korte Leven van Anne Frank" ) is a 2001 Dutch television documentary film about the life of diarist Anne Frank.  It was directed by Gerrit Netten.  The film was narrated by several actors, including Jeremy Irons, Joachim Krol, and Bram Bart.  Thekla Reuten and Nicky Mark Morris provided voices for Anne Frank.  The film includes the only known footage of Anne Frank (taken in 1941), a video of Otto Frank in English (taken in the 1960s), and some pages from the original diary of Anne Frank are also videoed in the film. Laatste Zeven Maanden van Anne Frank (English title: "The Last Seven Months of Anne Frank") is a 1988 Dutch television documentary directed by Willy Lindwer about the last seven months in the life of diarist Anne Frank.  Seven different women, who were fellow prisoners of Anne Frank in the Westerbork transit camp, and the Auschwitz and Bergen-Belsen concentration camps, gave interviews about Anne's last months in this documentary.  Among them are Hanneli Goslar, Anne's childhood friend and fellow prisoner in Bergen-Belsen, and Janny Brandes-Brilleslijper, Anne's fellow prisoner in all three camps.  Both women, who were cell mates with Anne and Anne's sister Margot, are believed to be among the last known people to have seen Anne alive. L. Ron Hubbard, Messiah or Madman? , is a posthumous biography of Scientology founder L. Ron Hubbard written by Bent Corydon, which makes extensive use of interviews he conducted with Hubbard's son Ronald DeWolf.  Though originally published in 1987 by Lyle Stuart Inc., the book was re-issued in a paperback edition on July 25, 1992 and a hardcover edition in October 1995, both by publisher Barricade Books.  The 1995 edition also featured Brian Ambry as principal researcher.  The first edition of the book listed DeWolf as coauthor. Margaret Louise "Polly" Grubb (September 22, 1907 – November 17, 1963) was the first wife of pulp fiction author and Scientology founder L. Ron Hubbard, to whom she was married between 1933 and 1947.  She was the mother of Hubbard's first son, L. Ron Hubbard, Jr. and his first daughter, Katherine May "Kay" Hubbard. A Piece of Blue Sky: Scientology, Dianetics and L. Ron Hubbard Exposed is a 1990 book about L. Ron Hubbard and the development of Dianetics and the Church of Scientology by British former Scientologist Jon Atack.  The title originates from a quote of Hubbard's from 1950, when he was reported as saying that he wanted to sell potential church members a "piece of blue sky."
Answer: no