USPS Bicentennial Anniversary of Sacajawa

USPS on 18 October 1994 issued a bicentennial first day cover stamp in  honour of Sacajawea, a Native-American woman who greatly assisted in the Lewis and Clark Expedition between 1804 and 1806 while traveling in Indian territory. It was postmarked in Tucson, Arizona. Artist Alvin Eckert get created the colour painting printed on cachet. Cover was franked with 29 cent Sacajawea stamp # 2869s (FDOI).

Additionally, this cover includes  SS SACAJAWEA memorial WWII Liberty Ship. The ship cover is one of a group honouring WWII Liberty Ships named for famous Americans. The Liberty Ship named after her was built in Portland, Oregon and delivered on December 29, 1942. The proud vessel transported vital supplies to the US and Allied Forces overseas during WW II. The ship carried post-war commercial cargo until scrapped in 1961.

Sacajawa (or Sacagawea) was famous as a Shoshone woman  born in 1788 and was taken as the non-consenting wife of a Quebecois trapper. She was pregnant with her first child and her son was born during the winter of 1804-1805 in Fort Mandan. When the Lewis and Clark expedition reached the Shoshone tribe, the chief they met was Sacajawea's brother. He provided them with the horses to cross the Rocky Mountains. This story is very long, but the main point is 
that Sacajawea was a very important member of this expedition.