Robert Judd may well have been born in Ireland, even in Co. Tyrone, but since he was born so far before the start of civil registration (1864 for births, deaths & Catholic marriages, Protestant marriages from 1845) it will be difficult to find details about him if he was in Ireland. However, strange (but not impossible)he married in Lincolnshire if he was from Ireland. Think you really do need his parents' names to get any further.