The library was founded by the Victorian statesman and politician William Ewart Gladstone (1809 - 1898). In 1895, at the age of 85, Gladstone gave £40,000 (equivalent to £4.03 million today) and much of his own library. Despite his advanced age, he himself hauled most of his 32,000 books a quarter of a mile to their new home using his wheelbarrow.
- "St Deiniol's Library, Hawarden". British Listed Buildings. Retrieved 4 December 2013.
- UK CPI inflation numbers based on data available from Gregory Clark (2014), "What Were the British Earnings and Prices Then? (New Series)" MeasuringWorth.
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