Charle François Houbre was born 21 May 1714 in Dommartin, Picardie in France. He married Klara Krefeld who was from Kirchan bei Hanau (Hessen). Their son Kornelius was born in 1761 in Niederburg, near Mainz. These three arrived in Katharinenstadt on 23 July 1767 where they are listed in Household No. 83.
This surname over time is recorded in records in Russia as Houbre, Ubre, and Oubre before settling to a consistent spelling of Ubert.
- Mai, Brent Alan. 1798 Census of the German Colonies along the Volga (Lincoln, NE: American Historical Society of Germans from Russia, 1999): Ka146.
- McGinnis, Sean. The Founding Families of Catharine, Kansas (2007).
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 294.