Looking for where my great grandfather came from

I believe my great gandfather came from Doneraile or Mallow.  He immigrated to the USA in 1899, if I found the correct immigration papers, it was 1899 and the city written down was Daneraile. Since there is no city of that name in Ireland, I figured it was written down incorrectly in New York and was actually Doneraile.  There is not much known about my great grandfather, due to the fact he was killed working on the trolley line on the Brooklyn Bridge on Feb 13, 1914 when my grandfather was 10 months old.  His wife Katie (married around 1905?) shortly thereafter disappears from any written record and my grandfather, his two brothers and sister were all put in an orphanage.  Hoping there is someone in Doneraile or Mallow has some knowledge of a Maurice Walsh being born in 1877 and left for America in 1899.  I am bringing my 82 year old father to Ireland this May (2015) to see the homeland and hopefully find something out about his grandfather's life.  Hoping someone has some stories passed down over the years, or old letters from Maurice home, or Parish records, but any help is greatly appreciated.  Thank you for your time,

Joe Walsh