Naturalised citizens of the United Kingdom

Sir Hans Adolf Krebs, FRS (, German: [hans ˈʔaːdɔlf ˈkʁeːps] ; 25 August 1900 – 22 November 1981) was a German-British biologist, physician and biochemist. He was a pioneer scientist in the study of cellular respiration, a biochemical process in living cells that extracts energy from food and oxygen and makes it available to drive the processes of life. He is best known for his discoveries of two important sequences of chemical reactions that take place in the cells of nearly all organisms, including humans, other than anaerobic microorganisms, namely the citric acid cycle and the urea cycle. The former, often eponymously known as the "Krebs cycle", is the sequence of metabolic reactions that allows cells of oxygen-respiring organisms to obtain far more ATP from the food they consume than anaerobic processes such as glycolysis can supply; and its discovery earned Krebs a Nobel Prize in Physiology or Medicine in 1953. With Hans Kornberg, he also discovered the glyoxylate cycle, a slight variation of the citric acid cycle found in plants, bacteria, protists, and fungi.
Krebs died in 1981 in Oxford, where he had spent 13 years of his career from 1954 until his retirement in 1967 at the University of Oxford.

Karl Hagedorn (11 September 1889 – 1969), who signed himself Hagedorn, was a painter and illustrator. He was born in Berlin in 1889 but settled in Manchester, England, in 1905.

Henriette Hardenberg (February 5, 1894 – October 26, 1993), born Margarete Rosenberg, was a German-Jewish poet who emigrated to Britain in the late 1930s. In the 1910s, she was part of the circle of writers around the magazine Die Aktion, which championed literary Expressionism. In her poems, she examined the relationship between people and their bodies, especially the skin as both an interface between self and world and a limiting factor. In a late interview, she said that her work expressed a desire to transcend the limits of the body. Hardenberg was one of the few women among German Expressionist writers, and one recent reevaluation of her oeuvre ranks her work among the best of the Expressionists.

William Franklin Ash MBE (30 November 1917 – 26 April 2014) was an American-born British writer, broadcaster and Marxist, who served as a fighter pilot with the Royal Canadian Air Force in World War II. He was shot down, made a prisoner of war, and was noted as an escaper.