Spencer County authorities are looking for a woman who has been missing for more than a week. 41 year-old Sheila Roos Williams of rural Lamar was last seen on June 21st when she dropped off her children at their father's house in Evansville and said she was going to the mall. Williams is 5'7", 160 pounds with short dark brown hair. She wears round eyeglasses. Williams was driving a 1995 four-door dark blue Buick Regal. Her license plate number is 74 B 4333. We're told that she needs her medications and that she's left without notice before, but not for this long or without contacting someone. If you have any information, call Spencer County authorities.