Addresses from his adverts in The Bookseller:
1894 1 Croom Villas, Bangor, Co. Down
[Added: various newspaper items for Croom Villa, Clifton Road, Bangor]
1897 [same address]
1902 [same address]
letter to Pall Mall Gazette, 1905
Belfast
letter to Pall Mall Gazette, 1907
6 Arthur Chambers, Belfast
During the same period as the last item above the same address is associated with adverts for properties to let via "G. K, Smith & McTear"
1907 is the last year that he appears with the Arthur Chambers address (or at all that I can see), by 1912 it is associated with Walter Smyth, solicitor