This is a list of fellows of the Royal Society elected in 1787."Fellows of the Royal Society", Royal Society. "Fellowship from 1660 onwards" (xlsx file on Google Docs via the Royal Society)

Fellows John Ash (c.1723–1798), physician William Bentinck (1764–1813) William Blizard (1743–1835) Thomas Gery Cullum (1741–1831) James Duff, 2nd Earl Fife (1729–1809) Ernest II, Duke of Saxe-Gotha-Altenburg (1745–1804) Thomas Erskine, 1st Baron Erskine (1750–1823) William Fordyce (1724–1792), Scottish physician George Trenchard Goodenough (b. 1743) Everard Home (1756–1832) Craven Ord (1756–1832), antiquarian Thomas Parkyns, 1st Baron Rancliffe (1755–1800) William Parsons (d. 1828), poet Arthur Leary Piggott (1748–1819), barrister and MP William Morton Pitt (1754–1836), MP Francis Rawdon Hastings, 1st Marquess of Hastings and 2nd Earl of Moira (1754–1826) Richard Relhan (1754–1823) Richard Anthony Salisbury (1761–1829) James Smithson (1765–1829) Luís Pinto de Sousa Coutinho (1735–1804), Portuguese diplomat George Leonard Staunton (1737–1801) Nicolas Vay de Vaja Alexander Wedderburn, 1st Earl of Rosslyn (1733–1805) Henry Willoughby, 5th Baron Middleton (1726–1800)

References