(CBS) — A 90-year-old South Side woman has been found dead outside her home — apparently a victim of the extreme cold.

Nellie Gordon had Alzheimer’s Disease, says her daughter Joyce Thurmon Smith.

Smith says that some time overnight, her mother wandered outside her home at 91st and Michigan, “and she succumbed to the weather.”

The temperatures overnight hovered around zero.

Chicago Police say Nellie Gordon’s body was found on a driveway.

Smith says her mother was originally from New Orleans and moved to Chicago when she was 13 years old.

“She helped everyone she came in contact with,” Smith says. “She was a church-going lady and a wonderful mother and grandmother.”

Smith says Nellie Gordon had four children and four grandchildren.