Coroners are appealing for any relatives of a Dewsbury man to get in contact.
Paul Anthony Whiteley, 67, died of natural causes on Saturday 21 May at a hospice in Huddersfield.
It is known that Mr Whiteley was born in Barnsley in February 1949 and served in the army.
It is thought he had a sister and a son but no information is known about them.
Any relatives are asked to contact Coroners Officer Carol Taylor on 01274 373641