Eugene,
On the top of this site, there is a search bar. Type in Lucking, the second listing is by a woman who was asking about a Lucking family of Wexford. She was last active on Rootschat last month (Nov)... I would reply to her post or once you have posted 3 messages you could send an IM to her. Perhaps she might have info.
Also, Have you searched the 1901 and 1911 census for Thomas? If you post what info you do have (middle name or complete name, parents, wife, children) that would help others assist you.
.... And Welcome to Rootschat!
