fl. 1665-79.
Roggeveen was a land surveyor and mathematician by profession, working in Middelburg where the Dutch East and West India Companies maintained collections of hydrographic manuscripts and charts, including Spanish portulans of the West Indies. No doubt through contacts there Roggeveen became interested in navigation and he compiled a pilot book of largescale charts of the West Indies and parts of the American coasts, with a second volume of the coasts of West Africa. These were the first such charts printed in Holland.
1770-1823.
Vallance arrived in Philadelphia from Glasgow Scotland early in 1791. He quickly established his reputation as one of the best engravers in the city. During this period he developed a friendship with James Thackara. In 1791 Vallance married Elizabeth Trenchard, a niece of Thackara's wife Hannah. A partnership with Thackara was established. He engraved banknotes and documents. In addition he was one of the founders, in 1774, of the Association of Artists in America. His wife Elizabeth died in 1798 at the age of 28. Four years later he married again to Margaret Pratt.
Washington Map Society.
1562-1622.
Plancius was a theologian and minister of the Dutch Reformed Church who fled with many of his compatriots from religious persecution in Flanders to settle in Amsterdam in 1585. There he became interested in navigation and cartography and, being fortunate enough to have access to nautical charts recently brought from Portugal, he was soon recognized as an expert on the shipping routes to India. He was interested, too, in the idea of a North East passage until the failure of Willem Barentsz's third voyage in 1597 seemed to preclude the possibility of such a route. In 1602 he was appointed cartographer to the new Dutch East India Company.
Although Plancius produced no atlases his individual maps and charts, over 100 in all, exercised much influence on the work of other cartographers at the turn of the century. His very large wall map of the world dated 1592 was of particular significance.
Amiral Häggs flaggkarta. - Stockholm 1888.
58. Magens, J. B. J., professor. - 1912.
