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What was the first name of Thomas Attewell's brother and cousin?

Context:
Thomas Attewell (7 November 1869 – 6 July 1937) was an English first-class cricketer. Attewell was a right-handed batsman who bowled right-arm medium pace. He was born at Keyworth, Nottinghamshire.

His brother William played first-class cricket for Nottinghamshire and the Marylebone Cricket Club, as well as Test cricket for England. His cousin Walter Attewell played first-class cricket for Nottinghamshire.<|im_end|>
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William and Walter<|im_end|>
