Brien family from Killarney

My 4x grandmother Bridget was born in 1834 in Killarney. She made her way to the States and settled in Richmond, Indiana. Her parents were Richard Brien and Mary Mahoney. Her siblings were:

Julia b. 1826

Nicholas b. 1828

Edmund b. 1831

Mary b. 1836

and Richard b. 1840

I was wondering if anybody knows about this family of just the history of where they lived during this time.I was also having issues tracing her parents linage. Or if anybody could help me trace her siblings. Her sister Mary is the only one I was able to find any information on.