Robert Porter, weaver of Clanrole and Ann Dickson of Lisniskey were married Jan 1, 1867. Ruth was born Mar 5, 1867, Elizabeth June 24, 1868, Sarah Ann Feb 15, 1870. James Nov 25, 1871, Thomas Sept 25, 1873, David May 13, 1875 and Robert 1877. The child Ruth would help confirm Ruth Hughes is the mother of Robert.
David and Ruth Hughes had children James July 1, 1843, Robert abt 1846, David Mar 1, 1847, Sarah Sept 24, 1849, John Apr 6, 1851, Henry Aug 28, 1852, Elizabeth Feb 1, 1855. I am not sure when the church changed from baptism dates to birth dates. These might be baptism dates.
David and Mary Jane (Dilworth) had children in Lower Seagoe Elizabeth Jane April 1, 1865, Thomas Porter Jun 17, 1866, Ann Jane Oct 25, 1868 (looks like 23 or 28 to me), Rebecca Jan 7, 1874, William Henry May 11, 1876, and Richard June 10, 1870. David is listed as a farmer here and a weaver at his first marriage, so there may be a mistake. There is a David looking like a weaver in Clarnrole in Griffiths and a David in Lower Seagoe looking like a farmer in Griffiths
You should also be aware of David Porter, Clanrole weaver son of farmer David Porter married Ann Elizabeth Dilworth, dau of Thomas Dilworth of Lisniskey in 1870.