While her name is spelled many different ways in the Lewis & Clark journals, at no time is it spelled with a "J"
[DOC] [TLE] Lewis and Clark Expedition and sacagawea : dfinition de Lewis ... [PAR] Dfinitions de Lewis and Clark Expedition and sacagawea, synonymes, 
antonymes, ... on a modern Shoshone-Bannock woman named Randy'L He-dow 
Teton; no ... Sacagawea was pregnant with her first child when the Corps of 
Discovery .... by name seventeen times, spelled eight different ways, each time 
with a "g".