A body found Friday in southern Indiana was identified as that of a former Des Plaines woman, Cathryn McGill, who went missing in December after floodwaters swept away the pickup she and her husband were driving.

Someone spotted the body atop cornstalk debris around 1:45 p.m. Friday near the mouth of a creek that feeds into the White River in southern Indiana, the Indiana Department of Natural Resources said.

The Vanderburgh County, Ind., coroner identified the body as that of McGill. An autopsy Saturday determined the cause of death was drowning.

On Dec. 29, Adam and Cathryn McGill were swept off the roadway on Route 257, near the border between Pike and Daviess counties, into floodwaters from the White River.

The couple had been visiting family in the Washington, Ind., area, where Adam McGill is from. They were heading back home to Norfolk, Va., when they drove around a barrier on a flooded road and were swept away, he said.

Boaters heard cries for help and found and rescued 35-year-old Adam McGill, who was driving, but couldn’t find his wife.