Martin Dagen, a craftsman (Handwerker), his unnamed wife, and 5 unnamed children immigrated to Denmark (Schleswig-Holstein), arriving in Flensburg on 24 July 1762. They left the Danish colonies in 1765 and joined the migration to Russia.
Martin Dagen, his wife Anna Maria, and daughter Eva Magdalena (age 3½) settled in the Volga German colony of Reinwald on 14 July 1766. They are recorded there on the 1767 census in Household No. 20.
The 1767 census records that Martin Dagen came from the German region of Mosbach in the Kurpfalz region. The Eichhorns record that Martin Dagen came from "Berwangen, Herrschaft von Graf von Helmstatt, Ritterlicher Kanton Kraichgau, Schwäbischer Ritterkreis."
There are no known surviving male descendants of this family, so the surname does not continue among the Volga German colonies.
- Eichhorn, Alexander, Jacob & Mary Eichhorn. The Immigration of German Colonists to Denmark and Their Subsequent Emigration to Russia in the Years 1759-1766 (Deiningen, Germany: Drukerei und Verlag Steinmeier GmbH & Co. Kg, 2012): B-256.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Göttinger Arbeitskreis, 2008): 34.