In 1896 her mother marries her second husband, Hungarian entomologist Adalbert Fényes, and the family moves to Pasadena, California, where Leonora attends Miss Orton's Classical School.
In 1933, she acquired the founding core of what is today El Rancho de las Golondrinas and the Leonora Curtin Wetlands.
She traveled the world, partly with her mother and daughter, and executed research in botany, linguistics, and music, that resulted in several books and articles.
[3] Documents pertaining to her research on Arabic words in the Spanish language (in collaboration with John Peabody Harrington) are kept in the Smithsonian Institution Archives.
Curtin assembled a large collections of Southwestern fetish carvings and donated more than 160 of them to the Wheelwright Museum.