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.
1715 - ca 1791.
Bland arbeten.
1735 Kleyne en Beknopte Atlas (8vo) Maps and town plans of various European Countries based on the work of the La Feuille family.
Engelsk kartgravör och förläggare. Av deras produktion kan nämnas 'British Atlas' som utkom 1837 och som till 1879 kom ut i 17 nyutgåvor.
Bland arbeten.
British Atlas.
Phillips.
Stockholm - Mentzer ca 1860.
Utrecht. - Blaeu 1643/44.
