Thom's 1863 listing for him has
Henry Davis, solicitor, coroner for the county of Dubli
74 Dame st, res. St. John's Tce, Clontarf
not sure how this fits in ... I looked through some old newspaper articles and see mention of Dr. Davis, county Dublin coroner (no first name) mentioned at least as late as 1873...there is also some slightly later articles which list the Dublin county coroner as Dr. Davys.
Shane