Johann Reinhold Forster, born on October 22, 1729, in Dirschau, Pomeranian Voivodeship, was a multifaceted German Reformed pastor and naturalist. He received his education in Dirschau and Marienwerder before advancing to the Joachimsthal Gymnasium in Berlin in 1745. His proficiency in classical and biblical languages led him to study theology at the University of Halle. In 1753, he took on the role of parson in a parish near Danzig, where he married his cousin Justina Elisabeth Nicolai in 1754, and together they had seven children, including their eldest, George Forster.
In 1765, Forster was commissioned by the Russian government to assess the new colonies along the Volga River. Accompanied by his son George, he documented the colonists' conditions and made significant scientific observations that were later presented to the Russian Academy of Sciences. However, after submitting a critical report on the Russian administration, he departed for England in 1766 without receiving payment. In England, he succeeded Joseph Priestley as a tutor in modern languages and natural history at Warrington Academy, where he engaged with fellow naturalists and published a mineralogy textbook.
In 1770, invited by geographer Alexander Dalrymple, Forster moved to London to prepare for an East India Company expedition, which ultimately did not materialize. Nevertheless, he continued to publish translations and scientific works, contributing to North American zoology and botany. His election as a Fellow of the Royal Society in February 1772 marked a significant milestone in his career.
After Joseph Banks withdrew from James Cook's second voyage, Forster accepted the position of naturalist aboard Cook's ship, with his son George serving as draughtsman and assistant. Their three-year expedition included the first recorded crossing of the Antarctic Circle and significant discoveries in New Zealand and Polynesia. Upon returning to England, Forster published the botanical work Characteres generum plantarum, but a dispute with Cook arose over the narrative of the journey, leading to George's publication of A Voyage Round the World, which was released shortly before Cook's account.
Forster's pride and obstinacy led to conflicts with influential figures in England. After settling some of his considerable debts with the help of German patrons, he returned to Germany in 1780, where he became a professor at the University of Halle. He managed the university's botanical garden for several years and published extensively across various scientific disciplines. Forster passed away in 1798 and was laid to rest in Halle, leaving behind a legacy commemorated in the names of numerous plant and animal species, including the genera Forstera and Forsterygion.