Glad the info was helpful. As to the local church in Callow, St. Thomas the Apostle, it's still there. You can see pictures of it and more info about the church at this site:
https://www.buildingsofireland.ie/buildings-search/building/31306103/ca…
You can see more info about the townland of Callow at this site:
https://www.townlands.ie/mayo/gallen/killasser/callow/callow/
and information about the townland of Cullonaughton (using the current spelling of Cuillonaghtan) at this site.
https://www.townlands.ie/mayo/gallen/killasser/callow/cuillonaghtan/
At both pages, there are links to other records which relate to the specific townland, such as Griffith’s Valuation and the 1901 and 1911 censuses. There are several entries for Anthony McNulty in Griffith’s Valuation, but I suspect they are not for your Anthony. He was probably too young to hold a tenancy at the time (he would probably have been in his teens then) and there were also one or more other Anthony McNulty’s living in Callow. One of them was my grandmother’s uncle, who I know was not the same person as your Anthony, because his wife was Mary Tunny and I have the records for all of their children. As I said, though, I suspect that your Anthony was a cousin of my great-grandfather (Thomas McNulty) and that Anthony. Both Anthony cousins might possibly have been named for the grandfather they shared, but the records from back then are not clear.
At both pages, you can also see the Upper and Lower Callow Lakes depicted in the interactive maps, and the location of the church, on the N26 road opposite Lower Callow Lake, right after the point where the L5376 road branches off to the north. The Corthoonduff area where many of the McNulty's lived is up that road (the L5376). There is a bridge which crosses from Callow to Cullonaughton in between the two lakes. Callow is An Caladh ("the callow") in Irish. The word calladh in this case means a low-lying area near water, or else a landing place, referring to the Callow Lakes. The parish name, Killasser, is Cill Lasrach in Irish , meaning “Lasair’s church”. Lasair (from the Old Irish lasar, meaning “flame” or “fire”) was not an uncommon name in medieval Ireland, but Cill Lasrach is believed to be named for a particular saint who was born in County Fermanagh and came to the Killasser area, where she is believed to be buried. The church at Callow is a “sub-church” within Killasser parish. The “main” parish church is the Church of all Saint’s further to the east, in the center of the parish. It was first erected around 1837, but was completely replaced by a new church in 1868. I don’t think the people in Callow attended mass there, but some baptisms or marriages may have taken place there, and relatives who lived closer to that church may have attended mass there. The parish registers which are available online are combined for both churches.
There are also several sites of older churches in the parish, probably originally monastic sites, which were abandoned by the time of or after the Reformation. Two of them are Cill tSeasnáin and Teampall Maol. In Irish, a reference to a formal church uses the word: (i) “cill”, for a monastic church; (ii) “teampall”, an older word taken from the Latin “templus” (so, when you see the word “temple” in a place name like Teampall Maol, it normally refers to a very old church); or (iii) “eaglais”, which is the current word for a church (and the greater church, as an organization) , and comes either from the Norman French “église” or the Latin “ecclesia” (from which “église” was itself borrowed). Since the ancient Gaels did not worship indoors, they had no words for a building where religious services were held, and had to borrow them from Latin and/or French. In the period when Catholic churches were technically not supposed to exist (late 17th-18th century), people celebrated mass either outdoors (at a “mass rock”) or in a house provided by someone in the community (sometimes even a Protestant landlord), called a “teach an phobail” or “house of the people/community”. Since the 1990’s, I understand that an outdoor mass has been celebrated annually at the ruins of either Cill tSeasnáin or Teampall Maol, as a sort of memorial of those days (and of the old churches themselves). I visited Callow in the late 1970’s, but didn’t see either of those sites, because they were not talked about much back then. You could ask for directions at the exiting church, if you’re interested.
There was a history book published in 2011 in Ireland, entitled “Killasser: Heritage of a Mayo Parish”, which contains lots of information about the area. The author is Bernard O’Hara, who was apparently working with the Killasser/Callow Historical Society. It can sometimes be found on Amazon, where I bought a copy a few years ago. The ISBN is 978-0-9850753-1-6, in case you want to look for it there or elsewhere. It is also available for downloading on Kindle readers, at a very reasonable price.
In Irish, the surname McNulty is Mac an Ultaigh, which literally means “son of the Ulsterman” (Ultach = Ulsterman, and Ultaigh is the genitive case of the word), but it may simply refer to descent from the Ulaid, a people for whom Ulster is named (in ancient Ireland, the Uluti tribe), which in remote times ruled the entirety of the North of Ireland. There are several stories about the origins of the surname, but according to MacLysaght in his “Surnames of Ireland”, the McNulty surname originated in County Donegal, and that is where the Mayo McNulty’s came from. A family of McNulty’s migrated to the Callow Lakes area in East Mayo in the 1640’s, and in the course of time, McNulty’s became numerous in the region. There are also still McNulty’s in Donegal and nearby counties. In Killasser, McNulty was the most common surname in the area in 1911, with double the number for any other surname (Durkan was the next most common name).
Since you’re doing research to prepare for your visit, there’s another web site you might want to check out. In the 1930’s, Irish schoolchildren were sent out on class projects where they interviewed mostly older people in their parish about the history and customs of the area. Some of the interviews were conducted in English and some in Irish. Over 250,000 interviews were conducted and they are available online at the Irish National Folklore Collection Project’s site:
https://www.duchas.ie/en
The content of the interviews varied from place to place, but they can cover local history, local place names, people known to the person being interviewed, local myths and superstitions, and other customs, such as how holidays or weddings were celebrated and even on what day of the week people customarily did their washing or baked bread. It’s said to be the largest national folklore collection in the world, and the interviews can be fascinating. I’ve read all of the entries for Killasser, and they were quite interesting. The National Folklore Collection Project also has folklore podcasts (Blúiríní Béaloidis. or “Folklore Fragments”) which one can listen to (in English and Irish) at this site:
https://soundcloud.com/folklore_podcast
Hope you enjoy your visit!
Go dté tú slán! ["Go/travel in health!"}