John Broughton, 74, died at the Diana, Princess of Wales Hospital in Grimsby last Thursday (April 18).
AMr Broughton was born on January 23, 1945, and lived in Louth.
Northern Lincolnshire and Goole NHS Foundation Trust is trying to locate relatives.
Anyone who is able to help is asked to contact the chaplaincy office on 03033 302489 or email [email protected]
• No photograph of Mr Broughton was available for publication.