Looking for Daniel McFarland (MacFarlane or Farland) b.1776 in Ireland, m.Eleanor b.1787 in Ireland immigrated to Wales

I have a brickwall:

I'm searching for McFarland's in Ireland (also Farland and Macfarlane, It was written all three ways on the Welsh census). I do not know what county they came from.  Here is what I do know:

 Daniel and Eleanor McFarland immigrated to south Wales (Cardiff then Merthyr Tydfil) around 1807 and the Welsh census merely states birthplace of Ireland for both. 

Daniel McFarland born 1776 in Ireland who married Ellen or Eleanor last name unknown b. 1787 in Ireland.  Estimating they married around 1804-1807. Estimating their immigration year to wales in 1807 because their first child was born in Wales in 1808.

Daniel worked as a schoolmaster, and Ellen was a bonnet maker. I believe they were Anglican since he was a schoolmaster and I believe most schoolmasters were Anglican until a bit later when non-conformist schools organized. Also, the children were baptized in St John and St Mary in Cardiff but by 1820 their later children born in Merthyr were baptized in Wesleyan chapels. Later in life he was Baptist, but this was after living in Wales for some time.

 

I'm trying to break through this brick wall by connecting with others or possibly checking DNA to see if I can figure out which county my McFarlands came from.  I would like to find Eleanors surname, and Daniels parents.  I'm on ancestry, 23andMe, and just signed up for ged match BR4173461 . Let me know if you're willing to compare either family trees or DNA. If you have this surname, please reach out, Even if you don't have a Daniel.

Thanks so much.