National Museum of African American History and Culture Albumen print of Harriet Tubman National Museum of African American History and Culture Carte-de-visite portrait of Harriet Tubman National ...

click image for close-up Harriet Tubman's days as a conductor for the Underground Railroad had long past when this photograph was taken, believed to be sometime around 1880.

Harriet Tubman is perhaps the most well-known of all the Underground Railroad's "conductors." During a ten-year span she made 19 trips into the South and escorted over 300 slaves to freedom.