Shenandoah is a Native American word. It has several different meanings including: daughter of the stars, an Iroquois chief's name which meant "deer in the woods", along with several others. _Wikipedia
Skenandore is a common surname among the Oneida people and they say it is derived from Shenandoah. An Oneida man in my city with the surname of Skenandore has a wonderful used bookshop called Shenandoah.