Susan
I have been revisiting your request for information about Finnigan from Seconglass but sadly to no avail although you are correct in that thevillage was in the Parish of Mountcollins however in that era and until the early 1800's the main Parish was Killeedy; This may help in your searches. There is sttill a couple of families of the same name in the area and I have requested any information that they might be able to give; meantime I will keep looking. Should you have learnt anything that might help then please do let me know on killeedy1@irelandxo.com my name is Jennifer Jean Is Denis or Michael your great grandfather or what relation and if you give me your granddads name too and anything else that could help.
You might - if you have not already, try the Griffiths Valuation or / and the National Library of Ireland or Limerick geneology
Hopefully you can give me something to work with as there is 2,785 Finnigan's listed for Limerick in 1790-95
Jennifer Jean reply to killeedy1@ireland.xo