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In page Joan Hinton:
"On August 29 (or in June, according to another source), 1966, Joan, Erwin and two other Americans living in China—Bertha Sneck (Shǐ Kè 史克, who had previously been married to Joan's brother William) and Ann Tompkins (Tāngpǔjīnsēn 汤普金森)—signed a big-character poster put up at the Foreign Experts Bureau in Beijing with the following text:[citation needed]
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