71 year old Diana Estey vanished from her home in Medford on October 31 and hasn't been heard from since that time.
Estey lived alone and was known to take walks from her home on Medford Center Road.
Several searches were conducted last fall, but the effort was eventually suspended.
Game Wardens plan to resume the search this Sunday and are now seeking volunteers to join in the effort.
Volunteers must be physically fit and be at least 18 years old.
They're encouraged to wear long sleeve shirts, long pants, hiking shoes or rubber boots.
They should also bring water and food for themselves.
People who want to participate are asked to gather at the command center at the Medford Town Office, Sunday morning between 7:30 and 9:00.
Those who can't take part in the actual search are welcome to help pass out food and water.