Coroners in Calderdale are appealing for relatives of a 68-year-old Halifax man to get in contact.
Derek Taylor was found dead at his home address on Crossley Gardens off Pellon Lane on Sunday April 28.
There were no suspicious circumstances surrounding his death.
It is thought that Mr Taylor had a half brother called Donald Taylor living in either the Colne area or in Lancashire.
Contact Coroners Officer Rod Holmes on 01422 354606.