From left, Andrew Oaks, Barbara Oaks and Deborah Albin. (Photos provided by Benton County Sheriff’s Office)

The investigation into the circumstances surrounding the Feb. 26 death of a 2-month-old girl in Corvallis continues and the Benton County Sheriff’s Office is reaching out to the public for help.

BCSO investigators would like to put together a complete picture of the care and location of Opal Oaks from her birth on Dec. 16 until her death on Feb. 26.

“If between these dates you saw any of these individuals — Andrew Oaks, Barbara Oaks or Deborah Albin — in the presence of an infant, or have any information about the health, welfare or location of Opal, the Sheriff’s Office urges you to call their anonymous tipline at 541-753-8477 or email the Benton County Sheriff’s Office at, referencing case #2023-526.”

The sheriff’s office had arrested Andrew Oaks following his daughter’s death on a felony charge of first-degree criminal mistreatment. Benton County Circuit Court has scheduled a probable cause preliminary hearing in the case for April 17.