Bertha de Jesus Dionisio was 23 when she was last seen on or around May 8, 2009, near Lukeville, Arizona, a small border crossing in Pima County. She was reported wearing dark blue jeans and white tennis shoes marked New York; she had dark hair and brown eyes. Height and weight are reported in a range: between 4 feet 10 inches and 5 feet 4 inches, and between 110 and 150 pounds.

Her disappearance was entered into the National Missing and Unidentified Persons System in July 2012, and the Pima County Medical Examiner’s Office has Bertha’s case on file. The official account states she was last seen crossing the U.S.-Mexico border; beyond that, details are sparse.

If anyone saw Bertha near Lukeville around May 2009 or has information about border crossings in that area from that time, please share what is known with the appropriate authorities.