Members of the Winnebago Tribe of Nebraska have overwhelmingly voted to expand their definition of tribal membership.
Previously, the tribe required at least one-quarter Winnebago blood relationship to qualify as an enrolled member. Now, those who have a parent or grandparent that belongs to the tribe can count blood relationship with other federally recognized tribes to meet the one-fourth "blood quantum" criteria...
Dreeszen, Dave. "Winnebago Tribe expands member definition." Sioux City Journal. February 07, 2009. Article. (http://siouxcityjournal.com/news/state-and-regional/winnebago-tribe-expa..., accessed October 25, 2013)