1. St Patrick’s Cathedral, Dublin, Boyle monument: www.stpatrickscathedral.ie/the-boyle-family-monument/.
2. Oxford Dictionary of National Biography (ODNB): www.oxforddnb.com.
3. MacLean, Gerald , ‘The Return of the King: An Anthology of English Poems Commemorating the Restoration of Charles II’, http://cowley.lib.virginia.edu/MacKing/MacKing.part_79.div2.html.
4. English Short Title Catalogue: http://estc.bl.uk/.