RootsChat.Com

The Oakfield family-

Listed as Methodist in 1901 and Charles' marriage was Church of Ireland (probably the bride's church)-
https://www.irishgenealogy.ie/files/civil/marriage_returns/marriages_1870/11392/8182718.pdf

Maguire John Francis of Oakfield county Fermanagh farmer died 10 April 1943 Administration Londonderry 22 October to reverend Charles F. Maguire methodist minister. Effects £907 12s. 6d.

Maguire Francis Gerald stationed at Royal Navy Air Station Lossiemouth Scotland and late of "Oakfield" Willoughby Place Enniskillen county Fermanagh surgeon lieutenant Royal navy died 4 September 1957 near Brova county Sutherland Scotland Administration Londonderry 29 May to Gertrude Mildred Maguire married woman. Effects £1092 5s. 11d.

Added-
Maguire, Charles Frederick of Willoughby Place Enniskillen county Fermanagh retired methodist minister died 14 November 1960 Probate Londonderry 23 November to Gertrude Mildred Maguire widow of testator and Charles Maguire medical doctor. Effects £3210.

Checking the 1901 census there is a Hugh Maguire in Aghacramhill townland-
https://www.census.nationalarchives.ie/pages/1901/Fermanagh/Corrylongford/Aghacramhill/1355997/
Ten years later he's aged 20 years-
https://www.census.nationalarchives.ie/pages/1911/Fermanagh/Corralongford/Aghacramphill/522000/
Clearly not the Hugh Maguire of Belfast.

For reference here's the marriage of Hugh Maguire-
https://www.irishgenealogy.ie/files/civil/marriage_returns/marriages_1870/11398/8185370.pdf
Hugh's occupation is shopman which indicates that father's occupation of 'gentleman' may be a bit exaggerated.

I think you need to realise that you need to look at both acreage and value of a holding. There are lots of rural areas with poor ground only suitable for grazing and those parcels often cover a lot of ground.
With the occupation "gentleman" you might be looking at a landsteward rather than farmer.

As I already mentioned, the Ryan family moved about quite a bit. They seem to have moved out of Portlaw itself between 1894 (death of son Michael) and 1901 census.
1869- stableman, Main St.; 1871- servant, Main St.; 1874- stableman, Main St.; 1878- 6 Bridge St., coachman; 1879- Curtis St., coachman; 1882- coachman, 3 Curtis La.; 1892- coachman, 2 Bridge St.; 1894- The Bridge

1910 Census- Maria & son William-
https://www.familysearch.org/ark:/61903/1:1:MV2M-KM3?lang=en
Is this Maria again in 1910 with son George?
https://www.familysearch.org/ark:/61903/1:1:MVGZ-V4P?lang=en