Hi Christine,
You have mentioned the name of my gt-gt-grandfather, Andrew BREEN of Glencar, Co Kerry who emmigrated in 1854, landing in New York on 1 Nov 1854 and settling in Reading, PA. He was born about 1809 and married Bridget (nee) BREEN and their childern, according to the St. James Parish records, Glenbeigh were:
Andrew 1835, David 1836, Joanna 1841, Henry 1844, Margaret 1846, Bridget 1849 (my gt-grandmother).
Andrew died 20 Nov. 1880 in Jacksonwald, Exeter Twnshp, Pa and is buried in Saint Peter's Cemetery, Reading.
I have heared of no BREEN relatives living in Xenia, OH or anywhere else.
Hope this makes a connection.
Sincerely,
Brian in Wyomissing, PA

Researching :
Co. Donegal: DORAN (Alt), BROWNE & McILCAR/CARR (Gortnagrace) to Philadelphia
Co. Mayo: CLARKE & HANAHOE/HANNAHOE (Corroy) to Reading, PA
Co. Galway: BRADY & JENNINGS to Lynn, MA
Co. Limerick: BROWN (city: St. John) , FREWEN (Castleconnell) to Philadelphia
Co. Kerry: BREEN (Glencar) to Reading, PA
Co: Cork: HICKEY to Philadelphia