[Johann] Dietrich Mast, a weaver (Wollweber), and his wife Maria Elisabeth arrived from Lübeck at the port of Oranienbaum on 14 September 1766 aboard the galliot Der Jan under the command of Skipper Markus Dragun.
They settled in the Volga German colony of Warenburg on 12 May 1767 and are recorded there on the 1767 census in Household No. 77.
In 1793, Karl Ferdinand Mast moved from Warenburg to Stahl am Tarlyk.
The 1767 census records that Johann Dietrich Mast came from the German village of Walenkepr [?] in the Braunshwieg region.