Paintings by Hugo Gugg in public possession:
| 1893–1897 | Apprenticeship as room- and decorative painter at the decorative master painter Gollmar & Franke in Leipzig, at the same time attending an evening semester at the Academy of Fine Arts in Leipzig and receiving private lessons by the animal painter Fedor Flinzer in Leipzig |
| 1897–1898 | 1898 Student of the Academy of Fine Arts in Leipzig |
| 1898–1899 | Studies in Zwönitz (Erzgebirge) |
| 1898 | First exhibition at the Museum of Fine Arts in Leipzig |
| 1899–1902 | Worked as a decorative painter, journeyman, at Gollmar & Franke in Leipzig, with a half-year break in Berlin at the painting school of Paul Schultze-Naumburg |
| 1900 | Married Milda Thum, 7 children |
| 1902 | Exhibition at the Kunstverein in Leipzig |
| 1902–1921 | Discovered by Prof. Theodor Schreiber, director of the Leipzig Museum. Artistic creations in Saaleck at "Saalecker Werkstätten", the painting school of Prof. Paul Schultze-Naumburg, first as student, then as a teacher |
| 1905 | First study tour to Italy |
| 1914–1918 | Soldier in the 1st world war |
| 1921–1945 | Appointed Professor of Landscape Painting at the Govt. College of Fine Arts in Weimar, succeeding Theodor Hagen |
| 1943 | Award of the Goethe Medal for Art and Science |
| 1945–1956 | Mainly private commissions in his studio in Upper Weimar, and extensive restoration work of historic buildings in Weimar during the Goethe year in 1949 and beyond. |