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),
Carlos Finlay Carlos Finlay Carlos Juan Finlay (December 3, 1833 – August 20, 1915) was a Cuban epidemiologist recognized as a pioneer in the research of yellow fever, determining that it was transmitted through mosquitoes "Aedes aegypti". Finlay was born Juan Carlos Finlay y de Barrés in Puerto Príncipe (now Camagüey), Cuba to Scottish-born Dr. Edward (Eduardo) Finlay and French-born Elisa (Isabel) de Barrés. At that time Cuba was part of the Kingdom of Spain. He reversed the order of his given names to "Carlos Juan" later in his life. His father was a physician who had fought alongside Simón Bolívar, and