2018 AIS Homecoming Powwow All are welcome the 50th Annual AIS Homecoming Powwow on September 29, 2018 at the 4H Camp Marshall Andrew Hall in Spencer, Massachusetts. The AIS Homecoming Powwow is an indoor event, and features Native American dances, drumming, kids' activities, craft display, and vendors selling Native American crafts, supplies and handmade items. [read more]