- Born on October 18, 1874 in Paris
- Deceased in 1961, at the approximate age of 86 years
Parents
- Antonio Evaristo d'Ornellas (1829 - 1904), barão de Ornelas, médecin
- Lola Heeren (1848 - 1904)
Family
- Married on October 23, 1899 in Paris, at 8e, with Ana Ponce de León (1879 - 1965), issuing
Marie-Thérèse (1900 - 1972)- Anne Marie (1905 - 2003)
Occupations
- ingénieur des Arts et Manufactures (ECP 1896)