At the Family Search database [https://www.familysearch.org], ; there are records for James Nevin, his wife Bridget Golden, and 11 children (some of whom appear to have ended up using the name Nevins, rather than Nevin). You can find James at ID # L2T6-1LH, and can easily access the other records from his, as you will see. The database is free to use, after you set up an account. At that site, you can see the screen names of those who have created or modified records, and send them private messages, so you might contact them and compare notes.
The records show the family as living in Skreen, in Sligo, which appears to be just east of the civil parish of Aughris. Skreen is the name of both a civil parish, and two townlands within that parish, Skreen Beg (in Irish, An Scrín Bheag, meaning "Little Skreen") and Skreen More (in Irish, An Scrín Mhór, meaning "Big Skreen"). The Irish word scrín means "shrine".
You can find more info about the civil pariish of Screen and those townlands here: https://www.townlands.ie/sligo/skreen2/
At the link for each townland, there are further links to Griffith's Valuation and the 1901 and 1911 census records for the townand (if they exiist online).
At the Family Search site, there is birth info for each of the children, running from 1864 to 1891, some shown as being born in Skreen, some in Aughris, and some listing just Sligo. There are also records for Bridget's parents, Michael Golden and Mary Davey. The names of James's parents are not shown.
The name of the Catholic parish is Dromard and Skreen, and the parish registers available online for that parish go pretty far back (1817 for marriages and 1823 for baptisms), so you might be able to find baptismal records for James and Bridget, if they were both from that parish, as well as a marriage record if they were married there. The parish records are available at this link:
https://registers.nli.ie/parishes/0746
In comparing the maps available at the last two sites mentiooned above, it looks to me as though the Catholic parish of Dromard and Skreen includes at least part of the civil parish of Aughris as well (a not uncommon occurrence), and that may have led to some confusion about place names.
