in American National Biography Online
January 1999; p ublished online February 2000 .
Reference Entry. Subjects: Science and Mathematics; Instruments and Instrumentation Engineering; Drawing and Pastels; Painting. 1077 words.
Clark, Alvan (08 March 1804–19 August 1887), artist and telescope maker, was born in Ashfield, Massachusetts, the son of Alvan Clark and Mary Bassett, farmers. He attended a local grammar...
in Oxford Dictionary of National Biography
September 2004; p ublished online September 2004 .
Reference Entry. Subjects: Engineering and Technology; Drawing and Pastels; Painting; Science and Mathematics; Instruments and Instrumentation Engineering. 1606 words.
Varley, Cornelius (1781–1873), landscape painter and inventor of optical apparatus, was born on 21 November 1781 at the Blue Post tavern in Mare Street, Hackney, the third of five children...