After attending humanistic schools in Ansbach and Munich, he studied engineering in Berlin and Zürich (Switzerland); after graduating, he founded a construction company in 1908 that subsequently was particularly active in Bulgaria where it built a number of official buildings.
Gottfried Wilhelm Leibniz | Gilbert Gottfried | Johann Gottfried Herder | Gottfried Keller | Gottfried von Einem | Gottfried Silbermann | Gottfried August Bürger | Johann Gottfried Schadow | Gottfried Ludolf Camphausen | Mike Gottfried | Johann Gottfried Gruber | Gottfried Semper | Martin Gottfried Weiss | Johannes Gottfried Hallier | Heinrich Gottfried Ollendorff | Gottfried Reinhold Treviranus | Gottfried Reinhardt | Gottfried Kirch | Gottfried Helnwein | Gottfried Heinrich Graf zu Pappenheim | Christian Gottfried Ehrenberg | Christian Gottfried Daniel Nees von Esenbeck | ''Robin'' Alexander Wolfgang Udo Eugen Wilhelm Gottfried of Sayn-Wittgenstein-Berleburg | Robert Feder | Paul Gottfried | Mark Gottfried | Kurt Gottfried | Kenneth Feder | '''Karoline Bauer''' (in a white dress) with a group of artists, including Johann Gottfried Schadow | Johann Gottfried Zinn |
After World War I, Eckart edited the antisemitic periodical Auf gut Deutsch ("In good German"), working with Alfred Rosenberg and Gottfried Feder.