Note: London Established 1724 Ancestor to Longmans, Green and Co. As of December 2019: The next Longmans ancestor in the database is Longman, Hurst, Rees and Orme (four partners implied) with ISFDB publications as 1805 to 1807. Wikipedia articles imply that 'T. Longman' and 'T. and T. Longman' of the 18th century are descendants of the partnership Osborn & Longman, established when Longman completed his apprenticeship too Osborn in 1724. Wikipedia publisher article "Longman" reports 'T. and T. Longman', in partnership with nephew Thomas Longman (1730–1797) from 1754; the latter sole proprietor from the death of his uncle in 1755; Owen Rees as partner from 1794; two more partners admitted 1804. Wikipedia biography "Thomas Longman" (the founder): Thomas Longman (1699–1755), a wealthy orphan, completed apprenticeship to bookseller John Osborn, and purchased the business of William Taylor (1719 publisher of Robinson Crusoe) in 1724. "Osborn entered into partnership with Longman, and they traded as 'J. Osborn & T. Longman' at the sign of The Ship." Longman married Osborn's daughter and became sole proprietor after Osborn's death about 1734. Nephew Thomas Longman became a partner in 1753.