just in case its relevant, are you aware of a Cronin chart G462 available at
http://www.bordersfhs.org.uk/BFHSFamilyTreeSearchForm.asp Some dates gave rise to queries examples
1. Catherine Cronin birth/baptism 1846 father Francis Cronin Co Down
see
https://www.ancestryireland.com/ credits or join etc compared to b 1849
with hindsight this seems best irish location clue on offer..You need the fullest detailed copy available
2. Catherine Cronin burial1890 Shankill civil parish Belfast see
https://www.ancestryireland.com credits or join etc I checked one source only
https://dof.belfastcity.gov.uk/burialsearch/1863 Griffiths valuation of Ireland three sources
1.
https://www.failteromhat.com for quick index.
2.
http://www.askaboutireland.ie/griffith-valuation/ for detail and map ref ..
3.
https://www.nidirect.gov.uk/information-and-services/search-archives-online/valuation-revision-books since 1863
Using 2. above
1863 Francis Cronin ho off small garden map ref 34A 10 shows part of Ballylough Road running from No 51 at the south end junction with the Ardbannon Road. this piece of the Ballylough Road contains Annsborough National School and a Fountain. The houses all face westerly towards the Annsborough Linen Factory with its own Gasometer. The post codes are Castlewellan, the civil parish is KIlmegan.
Using 3 above
looking up Valuation Revision Books online at PRONI , I encounted problems, anyway I worked backwards thus
PRONI Reference: VAL/12/B/18/9C (1888 - 1901)
map ref 34A 10 was rented by Hugh Parkinson and crossed out to a further Parkinson as I closed it I found
PRONI Reference: VAL/12/B/18/9B (1879 - 1887)
which does contain Ballylough
map ref 34A 10 was rented by Hugh McCann crossed out replaced with John McCann he is paying £5pa
PRONI Reference: VAL/12/B/18/9A (1866 - 1878) which does contain Ballylough
map ref 34A 10 was rented by Francis Cronin he is paying £2pa so no real occupation dates shown No mention of death or gone away. The landlord may not have bothered telling valuation office until new book started or etc He has vanished unless Murland estate has records
before that the tithes
http://www.irishgenealogyhub.com/down/tithe-applotment-books/kilmegan-parish.php don’t list any Cronin etc in Kilmegan there are 50 = other named entries for Ballylough townland
re kingskerswell marriage source
a Patrick Cronin m 26 Apr 1868 Newry RC Church. Jane Frances Montgomery I started seeking a Patrick Cronin living in Cumberlamd 1860-1870 and didn’t find one. I also didnt find a Francis Cronin living in Cumberland in 1860 census. I searched unsuccessfully in & around Newry for Francis Cronin eg
http://www.bagenalscastle.com/ancestry/search/detailshttp://www.rosdavies.com so none the wiser if a connection will be found
there is a topic Crilley Ancestors-Cleator Moor on
https://www.ancestry.co.uk/boards/thread.aspx?mv=flat&m=7&p=localities.britisles.england.cul.cumbria covers Thomas Crilly & Mary Cronin who came from Co Down
Finally PRONI has Murland items under ecatalogue which suggest Clarkhill cottiers are not popular and under social pressure from Earl Annesley heir
Ros Davies describes Clarkhill Clarkill Kilmegan . just N of Annesley Estate, the town of Castlewellan is in this townland ; 1718 acres; click here to see its location on a townland map; woods; residence of Mr James Murland, owner of Annesborough mills in 1836; major proprietor in 1863 was Earl Annesley V3 p 57 OSM; GV
Murland seems to be in charge of new roads one at least for his own factory and the railway is coming Murlands cottiers may be involved hence emigration if linen trade undergoes problems
I don’t think I can help further good luck onwards