Mercedes Emilia Duncan Véla
- Born on June 26, 1891 in Buenos Aires
Parents
- Carlos Domingo Duncan Ropes (1862 - )
- Mercedes Ema Felisa Véla Iturriaga (1866 - 1927)
Family
- Married on October 27, 1930 in Buenos Aires, with Eduardo Francisco Lan Yaniz (1886 - )