Send a message to the person who requested a photo of the grave monument of William Willmott Henderson with the following comment:
For my PhD research I am looking for a person involved in navigation or in the production of the instruments used for it. The name I have is 'Willm' (with the m in superscript, so most likely William) Henderson. I was hoping to find out where Henderson died from his grave stone.many thanks in advance for your cooperation,Nicolswww.dehilster.info