Art Students League of New New York
Her family lived in exile in France during the early years of her life, then moved to Cuba. Woss y Gil began her formal art studies in Cuba at the Painting Academy in Santiago de Cuba, under the instruction of José Joaquín Tejada. She participated in an exhibition in Santiago de Cuba in 1911.
In 1922, she moved to New York City to continue her studies, enrolling at the Art Students League of New New York
Her work was first exhibited in the United States in 1923. In 1924, Woss y Gil returned to Santo Domingo to open a small art school.
In 1928, she moved back to New York City to study human anatomy and broaden her artistic range. Upon her return to Santo Domingo in 1931, Woss y Gil opened a painting and drawing academy.
Painter Gilberto Hernández Ortega was among her many students.
Later, she was a professor at the National School of Fine Arts, which was founded in 1942. Woss y Gil died, aged 94–95, in Santo Domingo.