in 1877 there's no sign of him, or any other Davis, at the St. John's Tce, Clontarf address, and he is not listed in the index of 'Nobility, Gentry, Merchants and Traders, Public Officers &c &c' section
74 Dame street is listed as
E. Wilkinson, law & commercial stationer & printer
James Davis, solicitor - 1 Sydenham Rd, Dundrum
possibly a relation ?
In 1880, there's a possible listing for James at a new address :
James Robert Davis, solicitor, 67 Baggot street, lower
(his residence details are the same as '77)
previous thread for reference :
henry davis coroner dublinShane