 The first recorded inhabitants of the Susquehanna River valley were the <unk> speaking <unk> . Their name meant " people of the muddy river " in <unk> . <unk> by diseases and warfare , they had died out , moved away , or been assimilated into other tribes by the early 18th century . The lands of the West Branch Susquehanna River Valley were then chiefly occupied by the Munsee <unk> of the <unk> ( or Delaware ) , and were under the nominal control of the Five ( later Six ) Nations of the Iroquois . 
