Once you know about Hardy’s life, it's natural to see parallels to the events of his life in his writing. Two women were deeply important to his life and work: his first wife Emma Gifford, and his second wife Florence Dugdale.
Research:
“Max Gate.” United Kingdom National Trust. https://www.nationaltrust.org.uk/max-gate
Morris, Steven.”Discovery of letters shines light on Thomas Hardy's second marriage.” The Guardian. April 1, 2020. https://www.theguardian.com/books/2020/apr/02/discovery-of-letters-shines-light-on-thomas-hardys-second-marriage
THOMAS, JANE. “IN DEFENCE OF EMMA HARDY.” The Hardy Society Journal, vol. 9, no. 2, Thomas Hardy Society, 2013, pp. 39–59, https://www.jstor.org/stable/48563706
Fincham, Tony. “Life of Thomas Hardy.” Hardy Society. Feb. 3, 2019. https://www.hardysociety.org/life/
Richardson, Angelique. “Life behind the gates.” Times Literary Supplement. April 3, 2020. https://www.the-tls.co.uk/articles/newly-discovered-letters-thomas-hardy-wife-florence/
Tomalin, Claire. “Thomas Hardy.” Penguin. 2007.
Hardy, Thomas, “Wessex Poems and Other Verses.” Macmillan. 1919. https://www.gutenberg.org/files/3167/3167-h/3167-h.htm
Atkinson, Tim. “An old flame that burned bright – An Irishman’s Diary on Thomas Hardy and Emma Gifford.” Irish Times. March 2, 2020. https://www.irishtimes.com/opinion/an-old-flame-that-burned-bright-an-irishman-s-diary-on-thomas-hardy-and-emma-gifford-1.4189326
Norman, Andrew. “Thomas Hardy: Behind the Mask.” The Historic Press. 2011.