| √ | Century of Experience | Evidence | Name of Reader / Listener / Reading Group | Author of Text | Title of Text | Form of Text | | |
| 1800-1849 | Harriet Countess Granville to her sister, Lady Georgiana Morpeth, 1 January 1822:
'I think "Cain" most wicked, but ... | Granville Leveson Gower | George Gordon Lord Byron | Cain | Print: Book |
| 1800-1849 | Harriet Countess Granville to her sister, Lady Georgiana Morpeth, from The Hague, 22 April 1824:
'Here is again the... | Granville Leveson Gower | | French newspapers | Print: Newspaper |
| 1800-1849 | Harriet, Countess Granville, to her sister, Lady Carlisle, 4 September 1834:
'Our host at the inn at Avignon, a poe... | Granville Leveson Gower | ?Pierson | | Unknown |