Harriet Tubman was the first African American to be honored as part of the Black Heritage Stamp Series. She is also the first African American Woman to be honored on a U.S postage stamp. Please note that I said the Black Heritage Series. Prior to this the first African American ever honored on a U. S. postage stamp was Booker T. Washington in 1940 as a part of the “Famous Americans Series.”
The words Harriet Tubman and the Underground Railroad are synonymous. As a conductor for the Underground Railroad she placed herself in danger by helping hundreds of slave escape to freedom.
The US Postage stamps commemorating her are a 13 cent stamp issued in February 1, 1978 and a 32 cent stamp issued on June 29, 1995.