US Coin Histories

Will there be a section on Susan B Anthony and Sacagawea in the dollars section?

I can find infomation on Susan B Anthony but the information on Sacagawea is very light.
http://en.wikipedia.org/wiki/Sacagawea

This does not tell me WHY she was picked to go on to a dollar coin?

"She was nicknamed "Janey" by some members of the expedition."
"Sacagawea rescued items that had fallen out of a capsized boat, including the journals and records that Lewis and Clark were keeping"
"Sacagawea gave up her beaded belt in order to allow the captains to trade for a fur robe they wished to return to President Jefferson."

I seem to be missing the BIG event or is this just the precurser to the President Wives getting on coins?

"Her role in the expedition and this lack of records have led to a number of myths surrounding her, most notably that she was romantically involved with Lewis or Clark during their expedition. While the journals show that she was friendly with Clark and would often do favors for him, the idea of a liaison is believed to have been created by novelists who wrote about the expedition much later."