Hi there
We show a William Flynn was born Abbeyfeale 1823 but we show 4 other people with the same name born in the area around the time; There is a mention of some of the Abbeyfeale Flynns in the Griffiths valuation pages 42 & 51, there is a good explanation of these papers on this IreladXo site you might like up. The William that I have from Abbeyfeale actually emigrated to Duboque Iowa in June 1849 with Johanna (born abt 1827) and had daughters Ellen (Ella) 1850; Anna 1857 and son William 1860 and Bridget Teresa 1862:
I have found no records of Johanna O'Donnell in the Parisdh of Abbeyfeale of her birth or marriagealthough I do have one to match the name born 2.9.1827 baptized Galbally & Aherlow Limerick & Tipperary parents Jame O'Donnell & Mary Butler
You might get a better idea of which Flynns you are researching by going into the arrival papers; they would have sailed probably via Liverpool
There is 3,680 William Flynns in Limerick in and around the year 1826 and 2,749 Johanna O'Donnell
If you can link into teh National Library of Ireland you might glean something more or Roots.ie will certainly be able to help you.
So the slightest bit of definate information will make a big difference to searches
Good Luck in your search, I am sorry that I cannot help at this stage
Jennifer Jean killeedy1@irelandxo.com