Hi,
Thank you for your message.
Unfortunately, it may be difficult to find information without a more specific place of origin. Most Irish record sources- church records, land records, census records- are based on specific locations. Until you know a specific location within Ireland, preferably a parish or placename, it may be difficult to do anything more with these records.
I did a search for Daniel and Roger on the National Archives of Ireland Transportation Database. Results came back for both names in 1848, in Limerick for larceny so I assume that these are the brothers:
http://findingaids.nationalarchives.ie/index.php?simpleSearchSbm=true&category=18&subcategory=147&searchDescTxt=roger+duggan&simpleSearchSbm=Search#searchfocus
http://findingaids.nationalarchives.ie/index.php?simpleSearchSbm=true&category=18&subcategory=147&searchDescTxt=daniel+duggan&simpleSearchSbm=Search#searchfocus
As the trial took place in Limerick I suggest that you contact Limerick City Archives to see if they can advise you on any possible records that may exist:
http://www.limerickcity.ie/Archives/
You could also try looking in newspaper archives to see if there is any mention of the brothers. It may give a parish of origin. You should contact the Local Studies Department of Limerick Library to see what newspapers they have available:
http://www.limerickcity.ie/Library/LocalStudies/
You could also try http://www.irishnewsarchive.com/
Once you have a more specific place of origin for the brothers more avenues of research will open up to you.
You mention that your grandmother?s people are from Kildare in Clare. Unfortunately, Kildare and Clare are separate counties. Where did you get this information? Is it possible that the ?Kildare? part was misread? There are alot of parishes in County Clare that begin with ?Kil?, here to a list of parishes:
http://www.irishtimes.com/ancestor/fuses/civilparish/index.cfm?fuseaction=GetMap&CityCounty=Clare
It may be an idea to contact the Local Studies Department of Clare County Library, they have an excellent county collection of records and resources. Here is the link to their contact page:
http://www.clarelibrary.ie/eolas/library/local-studies/locstudi1.htm
Remember to post any new information that you find here. The more information you post, the more likely it is that one of our volunteers will be able to advise or assist you. Also include information concerning which sources you may have already used so others may further your search.
Kind regards,
Genealogy Support