She serves as the Sonksq (female chief) of the Hassanamisco Nipmuc Band, a Massachusetts state-recognized tribe.
The coalition is run by a group of Native American women advocating for culturally appropriate health care programs for Nipmucs.
In June 2014, she participated in a panel discussion of Massachusetts tribal leaders at Boston’s Suffolk University entitled, “A Hidden History: How Massachusetts Law and Policy Facilitated the Loss of Tribal Lands.” She described the vast land dispossession at the end of the seventeenth century where the majority of Hassanamesit Nipmuc reservation land was sold to European colonists.
[6] In April 2015, Holley spoke at the 13th New England Regional Genealogical Conference in Providence, Rhode Island.
She discussed how New England’s waterways served as highways between tribes, fostering intertribal connections that still exist today.