Wikipedia
The Anglo-Russians were an English expatriate business community centred in St Petersburg, then also Moscow, from the 1730s till the 1920s. This community was established against the background of Peter I's recruitment of foreign engineers for his new capital, and generally cooperative diplomatic relations between the Russian and British empires. Some of the families were resident in Russia for several generations, though generally retaining UK citizenship and sending their children to be educated in England. Some lived there for so long that their English acquired a distinctive accent peculiar to Anglo-Russians.
Notable Anglo-Russian families were built around the trading houses and businesses of the Cazalet family, - the Cazalet-Miller business empire including the Ebsworth family, and Whishaw family. One of the first Anglo-Russian families was established by Noah Cazalet (1757-1800), a silk weaver, settled in St Petersburg and expanded into the burgeoning business of rope manufacture for sailing ships. In 1860 Edward Cazalet married an Elizabeth Marshall, and became connected to the company of William Miller & Co, of Leith in Scotland. The Whishaw family, of Hills and Whishaw Ltd, included James Whishaw, and influential intermediary in development of the Baku oilfields and Stella Zoe Whishaw, later Baroness Meyendorff, an Anglo-Russian actress who wrote a memoir Through terror to freedom - the dramatic story of an Englishwoman's life and adventures in Russia before, during & after the revolution in 1929, and then became a film diva in the 1930s.
A fictional account of Anglo-Russians is found in Penelope Fitzgerald's The Beginning of Spring (London, 1988).