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In page Kate Douglas Wiggin:

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In the 1980s and 1990s, Wiggin's first husband's distant cousin Eric E. Wiggin published updated versions of some of the books in her Rebecca of Sunnybrook Farm series. He later published his own addition to the series, entitled Rebecca Returns to Sunnybrook.[1] Eric E. Wiggin extended her series after years of writing Christian literature, newspaper articles, and other children's books. His books sold best among his target audience of homeschoolers; with their help, his updated novels and his new addition to the series have sold more than 50,000 copies.[citation needed]