Thank you for info.Brian.Most helpful.Hadn't realised Owen McCluskey was on 1871 census.Wondered if his son John (b.1860) was also listed?
Realised there were two marriages for Owen:
1850 to Bridget McCarthy(my g.gran.)1864 to
Jane McNeil. Christian name of groom's father is the same on both but occupation different.Condition on second - bachelor!Same man in both cases ?Thus extended my search to H.of I.