Which writter is known to have wrote Harry Potter, Mary Gordon or J. K. Rowling?
J. K. Rowling Joanne Rowling, {'1': ", '2': ", '3': ", '4': "} ( ; born 31 July 1965), who writes under the pen names J. K. Rowling and Robert Galbraith, is a British novelist and screenwriter who wrote the "Harry Potter" fantasy series. The books have won multiple awards, and sold more than 400 million copies. They have become the best-selling book series in history and been the basis for a series of films, over which Rowling had overall approval on the scripts and was a producer on the final films in the series.
Olivia FitzRoy Olivia FitzRoy, born Olivia Gwyneth Zoe FitzRoy, (May 27, 1921–December 24, 1969) was a British author of children's books. She was the granddaughter of the first Viscountess Daventry, raised to the peerage as widow of the Speaker of the House of Commons from 1928 until his death in 1943; her mother was a member of the famous Guinness family. Olivia FitzRoy was one of five sisters.