Mr Baumer has been located safe and well.
Pinjarra police are seeking public assistance to help locate 63-year-old man John Baumer.
Mr Baumer was last seen about 9.30am on Monday, January 20.
He left his lodging on Bedingfeld Road in Pinjarra and may have boarded a bus bound for Mandurah.
Mr Baumer is described as fair skinned, approximately 181 centimetres tall, with a slim build and short light brown hair.
He was last seen wearing a grey jumper and dark track pants.
Police have concerns for his welfare and say he may be confused and not remember where he is or where he is going.
Anyone who sees Mr Baumer or has information regarding his whereabouts is asked to call police immediately on 131 444.