The Cambridge History of English and American Literature in 18 Volumes (1907–21): Volume IX. From Steele and Addison to Pope and Swift, p 28: http://www.bartleby.com/219/0814.html
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Lord Clifford was a first cousin of Tindal's grandmother, Anne Tindal, née Hals: Burke's Landed Gentry (1863): 'Tindal of Chelmsford'