Jan
sorry for the delay in replying but I was incapacitiated, some would say that is a normal state of affairs, firstly the one "n" spelling is common in Louth here, a quick aside the most famous Finegan from Louth was from north Louth, you are in mid to south Louth, the previous vice Presiden of the USA Joe Biden is a Finegan on his mothers side, was here last year on the tour.
I checked the Griffiths Valuation for Louth in 1854 and the only Owen Finegan is in Port (now called Clogherhead) seehttp://www.askaboutireland.ie/griffith-valuation/index.xml?action=nameS… he was a tenant farmer of a McDaniels (some also went to Australia) most farmers were teneants at this time (hence the land wars some time later) and the Land Act of 1903 I think allowing tenants to buy from landlords. He is hte only Owen Finegan to suit in that site. Cooney is also a common name in the area of Louth, Monasterboice, however I think there is a civil marriage to suit in Drogheda in 1864 as I see the two names on the same page. The church marriage is visible in Monasterboice on 14th April 1864 in the parish registers here https://registers.nli.ie/ enter Monasterboice, remember marriage usually in wifes parish, there are still Cooneys there. You can apply for the civil registration here, unfortunately the cert is not free to see on line at present, this would confirm the fathers names and townlands of address. https://www.irishgenealogy.ie/en/ The site is free but you must sign in. There are instructions on ordering a cert. just follow the link, if you have any issues let me know.
There is an interesting site on Louth here http://www.jbhall.freeservers.com/ and Monasterboice has a really beautiful old graveyard containing High Crossses, the graveyard is still in use and free to visit and see the High Crosses and if you ever come this far there is a new small hotel nearby opened this year beside a restaurent / bar. See for the crosses http://www.megalithicireland.com/High%20Cross%20Monasterboice.htm there are other sites for them too. the general area is still pretty rural. There is a Facebook page for Louth Genealogy and another for Drogheda Down Memory - Lane Lost Families (Drogheda is about 8 miles from Monasterbice or less, same from Clogherhead. In the church records the parish is Port. You apply to the FB pages to join but it appears fairly automatic, answers can be a bit odd with people coming in saying they have a relative of such and such but you can join and see if you want to post, they are moderated and there is no badness there.
Pat