David White Finlay Finlay was born on 1 September 1840 to James Finlay (died 13/5/1849) and Isabella White. He had 4 brothers, John (1830-1854), Alexander (1833-1895), James (1836-1910) and William Neilson (1842-1903). John died aged 23 in Malta when on a trip to the Holy Land. Alexander was a Seascape Painter. James was a GP in Helensburgh when A J Cronin (writer of Dr. Finlay's Casbook) was in his youth in Helensburgh. In Aug 1878 in Marylebone, London David married Catherine Mary Thompson, daughter of the shipowner, Stephen Thompson. They had four sons and four daughters viz. Ronald Stephen (1879-1884), Brenda Mary (1880-1952),
Finlay colour process Finlay colour process The Finlay colour process was an early additive colour photography process devised by Englishman Clare L. Finlay which could produce a picture in natural colour with a single exposure. The Finlay colour process was based on the theory of scientist Clerk Maxwell, who discovered in 1861 that all the colours in nature could be matched by the proper admixture of the three primary colours. It was on this principle that Mr. Finlay made a screen of geometric pattern comprising red, green and blue-violet squares in regular sequence. Patented by Finlay in 1906 and introduced in 1908 as