Connolly and McGowan married in Co. Sligo in 1861

Hello: My great uncle Thomas Connolly married Maria T. McGowan in February 1861 in Calry, Co. Sligo. He was from Sheffield , England. She was from Sligo. What was the name of the church? Any guess how these 2 got together being so far apart? Were there Connolly's in Sligo? Are there still McGowan's and Connolly's, who would be possible relatives, in Sligo? The surname Larney appears on the marriage record. They were related to the Connolly's. Any Larney's in Sligo?

Any information or direction would be greatly appreciated.

Thank you.

Kerry Connelly