Tom,
I see a marriage for Patrick McManus and Kitty Lee registered in St Mary’s RC parish in Haddington, Midlothian on 13.2.1854. Might be worth looking at that record to see if any information is given about parents or parish of origin in Ireland. Children to that couple in the RC church records for Haddington:
Margaret baptised 4.1.1855
Patrick 16.3.1856
Bridget 26.11.1857
Jane 3.7.1862
In the 1861 census I see 3 of the family in Dunbar. (Patrick 28, Patrick 5 & James 0). Surname spelled McMannis. I don’t know where the rest of the family was. Possibly a closer search of the census may find them. Or perhaps they were back in Ireland. However I can see the full family in the 1871 census for Humbie, East Lothian, with 7 children. It confirms both Patrick & Catherine were born in Ireland but doesn’t say where (as was normal). The baptism & census records are all on the Scotlandspeople site:
https://www.scotlandspeople.gov.uk/search-our-records
I noted a second McManus family living nearby in Humbie in the 1871 census. That was a Patrick McManus married to Bridget McGovern. They married 28.4.1854 in Haddington. The 2 families childrens naming patterns are similar eg they both had children named Hugh. So I’d suspect they may be related.
Patrick & Kitty seem to have left Scotland by 1881 though the other family - Patrick & Bridget - are still in Humbie.
There’s a tree on Ancestry (McManus/Jordan) which has the McManus & McGovern family. They have their Patrick McManus born in Boyle, Co Cavan in 1828. I can’t find anywhere in Cavan named Boyle, and the year of birth doesn’t tie in with the 1871 census which indicates Pat was born in 1836. They also have Patrick dying in Humbie on 14.8.1875. However the death certificate index says he was 60 (so born c 1815). So some of that information may need reviewing. However the owner of that tree seems to have information that his/her Patrick came from Co. Cavan. You might want to contact them to see where that came from. Given that the 2 families lived so close to each other it’s possible yours came from there too.
Your family appears to disappear from Scotland after the 1871 census. You obviously know Margaret went to the USA c 1875. What about the others? Any idea where they went? Did they go with her? Your Patrick’s death certificate could reveal his parents names and occupations which ought to be helpful.
