what period are we talking about ?
you can look at my transcribed Victorian directories to see when services similar to today's "undertakers" (or funeral directors) came into vogue (before mid 19th C joiners would provide the coffin and the family apparently organised maters themselves) - similarly there is a noticeable change in the reporting of funeral direction from pre WW1 to late 1920's in the reported Memorial Notices in Manx Quarterly