Gustave Daniel Koechlin
- Born on June 8, 1865 in Mulhouse
Parents
- Émile Carlos Koechlin (1827 - 1870), chimiste et manufacturier dans la maison Frères Koechlin à Mulhouse
- Marie Schwartz (1841 - 1911)
Family
- Married on September 10, 1913, with Henriette d'Andiran