Hester Lynch Thrale Piozzi, a Welsh-born diarist, author, socialite and patron of the arts, is an important source on Samuel Johnson and 18th-century English life. She belonged to the prominent Salusbury family, Anglo-Welsh landowners, and married first a wealthy brewer, Henry Thrale, with whom she had 12 children, then a music teacher, Gabriel Mario Piozzi. Her Anecdotes of the Late Samuel Johnson (1786) and her diary Thraliana, published posthumously in 1942, are the main works for which she is remembered. She also wrote a popular history book, a travel book, and a dictionary. She has been seen as a protofeminist.

Samuel Johnson, often called Dr Johnson, was an English writer who made lasting contributions as a poet, playwright, essayist, moralist, literary critic, sermonist, biographer, editor, and lexicographer. The Oxford Dictionary of National Biography calls him "arguably the most distinguished man of letters in English history".