Volunteers not giving up in the search for missing mother Andreen McDonald A group of volunteers will continue to expand their search Sunday afternoon, 16 days after McDonald disappeared. On Saturday, Marie Kaffaga was searching on her own along US-281. The group has been calling in resources to help in the searches. Kaffaga said they have searched at Camp Bullis, the Stone Oak area near the vicinity of the McDonald's home, Canyon Lake and other area. "It's been tough conditions and there's not a whole lot to go on," she said. "We are trying to put ourselves in the situation and figure out maybe (where) we would go, as morbid as that sounds, but we're looking on the satellite maps for desolate areas like this, but (that) are easily accessible." Volunteers plan to continue searching Sunday afternoon at the Overlook Parkway.