Bosman was born in Utrecht. Although he sailed to the Gold Coast as an apprentice when he was only 16 years of age, he managed to climb the ranks and eventually became head merchant (Dutch: opperkoopman). In 1702 he sailed back to the Dutch Republic, and little is known of his later life.
Bosman is best known for his description of the Gold Coast titled Nauwkeurige beschrijving van de Guinese Goud- Tand- en Slavekust (An accurate description of the Guinean gold-tooth and Slave Coast) published in 1704. This document remained the most authoritative description of the area for more than a century and provided significant detail of the Komenda Wars in which Bosman took part. He described in detail the functioning of the slave trade and commented of Fida that "markets of men are here kept in the same manner as those of beasts are with us." The book was a major source for Ghanaian historians in the twentieth century and was republished in English in 1967.
The Ghanaian surname Bossman is thought to originate from the children Bosman had with his black mistresses.
- Wilks, Ivor (1968). "Bosman New and Costly". The Journal of African History. 9 (1): 164–166. doi:10.1017/S0021853700008434. ISSN 0021-8537. JSTOR 179928.
- Woolman, John (1837). A Journal of the Life, Gospel Labours, and Christian Experiences of that Faithful Minister of Jesus Christ, John Woolman. Philadelphia: T E Chapman. p. 233.