Seeking Hanlons in Dungloe or Loughnaure

My 2x great grandfather was an Owen Hanlon.  All we know is that he listed "Templecrone, Donegal" as his place of birth (b. 1828 or 1829).  He's presumed to be Catholic. We don't know his parents names, but his siblings were John (b. 1825), Suzanna (b.1826), Patrick (b. 1836), James (b. 1840), Frank (b. 1844) and Denis (b. 1948). We know that Patrick, James, Frank, and Denis all emigrated to America (Denis arrived when he was age 8) and, like Owen, settled in northeastern/central parts of the state of Pennsylvania. 

Owen emigrated to America from Liverpool, arriving in either Boston, Massachusettts (1853) or New York City (1855).  He married a Briget Sweeney, daughter of Edward Sweeney and Mary Boyle, who was from Loughnaure. There is a Bridget Sweeney listed on the passenger manifest of the Boston ship (1853) on the same page where an Owen Hanlon is listed. By the 1860s, the Hanlon family had settled in Trescow, Carbon County, Pennsylvania, where Owen worked as a coal miner. Later, the family moved to Wilkes-Barre, Luzerne County, Pennsylvania, where both Owen and Bridget lived until they died.