The Irish Enigma
While the Baronal Blayneys of Monaghan were landed, strongly Protestant and held clear lineages from Blayneys descended from Welsh princes, Blaney families from other parts of Ireland tended to be Catholic and in the main poor with no known geneaological link to the Blayneys of Montgomeryshire. ,  There are possible links to 'Blanes' in Scotland (and known frequent migration between Ireland and Scotland over the centuries).
However it is clear from the 1850 figures that the numbers were relatively low and remained concentrated in Ulster / Northern Ireland (with a few moving to Dublin and some on the USA or Canada). The Blayneys (with 2 "y"s) largely stayed Protestant and in Northern Ireland. Those who identified as Catholic were mainly Blaneys (one "y") [=389] and also concentrated in Ulster.
This makes it more likely that most derived from Welsh immigrant (Planter) Blayneys related to but not actually descended from the Barons who left no identified Blayney male heir. ;  A number of the Welsh family of the 1st Blayney Baron (Sir Edward Blayney) "migrated to County Monaghan to take advantage of his influence and purchase land"  pp. 301-2;  and there were eight other Blayneys at his funeral  p7; .
All this of course appears to make a search for another Irish Blayney origin unnecessary, although I am not yet convinced all Blaneys derive from the Welsh Blayneys, given they were more likely to be Catholic and the Blayneys were strongly Protestant. Other factors such as literacy (hence the dropped "y") or intermarriage need exploring.
Should anyone know of another origin of Blayneys and Blaneys in Ireland, I would love to report that on this site
Irish Catholic baptisms: Blaney (389), Blayney (46)
- Blayney Barons of Castleblayney
- Belfast BLAYNEYs (Daniel)
- Co.Tyrone Cadwallader Blayney (descendants to USA)
- Co.Tyrone Ambrose Blayney (Blaney) & Jane Steele (descendants to Canada)
 Blayneys of Belfast
This lineage courtesy of Eric Blayney  with additions and corrections from Frederick William Blayney's tree , Familysearch.org  and Ancestry.com search  as well as the General Register Office for Northern Ireland .
1 Daniel BLAYNEY Occ. Miller Possibly the Daniel Blayney, labourer residing at 42 Academy Street (1861)  There were no Blayneys in the 1843 Belfast Street Directory and in 1852 there was one, an Archibald Blayney, grocer and publican [Johnston's Place, Ballymacarrett] . Could this be Daniel's father? Archibald died 9.Dec1888 aged 80 (Belfast)  By 1864 (GRO BDM record starts), there were a number of Blayneys not listed in this genealogy - hopefully I will find another genealogist with the basic info one day!) + __ 2 John BLAYNEY b.1828; d.15Nov1875; Occ Builder + Margaret WEIR b.1833; m.2Aug1851; d.24Dec1911 [dau. of Daniel WEIR, Tailor]. [She married Arthur NUGENT, stonecutter after John's death]
3 Thomas BLAYNEY b.1862 (Belfast); d.8Aug1919; Occ. Stone Merchant & quarry owner; Store Merchant (1909) ; Methodist +(1) Charlotte SWAIN b.18July1865 (Belfast ; m.2Feb1885; [Dau of Alexander SWAIN, Occ. Watchmaker] d.28Aug1906 age 42, three years later (1909) Thomas married Annie PATTERSON 4 Elizabeth ("Beth", "Lizzie") BLAYNEY b.1886/7 ; Occ. Designer + Walter COOPER b.1886; m.30Apr1908 (Belfast) ; [1 child] 4 Annie Swain BLAYNEY b.3Aug1887 (Belfast) ; ?Emigrated to Canada but obviously returned as she d.unm d.12Oct1957 (Belfast) (Cancer) ; Occ. Bookkeeper; Clerk Annie BLAYNEY was aged 70 in Belfast on 12Oct1957, consistent with birth date.
(2nd wife) 1912
Thomas Blayney family 2012
Clic to view details
& Charlotte c1958
4 John BLAYNEY b.1May1892 (Belfast) ; d.29Jul1960 (Vancouver); Occ. Clerk (1911); Accountant Emigrated to USA (South Pasedena CA 1911), then Canada +(1) Louise Isobel McCULLOUGH b.1893; d.1930-40 5 Charlotte Louise BLAYNEY b.24Apr1916 (L.A., CA.); d.28Jun1996 (Los Angeles) + Robert Samuel WILKINSON b.1912; m.3Jun1950; d.20Jul1993; 3 children including.. 6 Major Robert Gregory WILKINSON b.6Sep1951; d.22Jun1983 (non-military); (Marine Corp) 5 Edith Sara BLAYNEY b.1918 + Alexander MORRISON m.3Jul1940 [1 child] +(2) Charlotte FUNSTON b.20May1903; d.6Oct1990
Fred Blayney 1911
Fred Blayney 1935
Fred Blayney (R) in his Stonemason Yard c.1935
& Charlotte c1958
4 George Weir BLAYNEY b.9Oct1894 (Belfast)  d.22Mar1963 ; Occ. Stone Cutter + Sarah ("Beanie") FULTON b.20Mar1896; m.23Dec1918 (Mountpottinger Baptist Church, Belfast)  [Dau. of William FULTON, Lithogric Printer]  5 Dorothy BLAYNEY 5 Pastor George F BLAYNEY d.unm
4 Thomas ("Tom") BLAYNEY b.31Jul1898 (Belfast) ; d.4Apr1968; Occ. Motor Mechanic + Elizabeth (Liddie) Wood DUNLOP b.12Jul1897; m.24Nov1920 ; d.13Mar1986 (Bangor, NI) 5 Thomas (Tom) BLAYNEY b.17Apr1922; d.26Sep2013 (Bangor); Occ. Cashier (Belfast Steamship Co/P&O) + Living BLAYNEY view family (?p/w problem)
& Liddie 1926
Thomas and Liddie Blayney
1954 (click) (1954 in thumb)
née Dunlop 1970s
Tom (III) and Ina
Tom (III) and Ina
4 Charlotte Margaretta (Greta or Gretta) BLAYNEY b.3Jan1901 (Belfast); Emigrated to Canada (Peterborough ON) + William James (Jim) McKINTY b.28Jan1900 ; m.9Sep1920 (Belfast) ; [1 child] 4 William ("Billy") BLAYNEY b.10Dec1903 (Belfast) ; d.unm 27May1955 
Tom (III) and Ina
née Blayney 1955
(later Shanks) 1952
(later Shanks) 1955
Jim McKinty 1929
Greta, Jim & Denny McKinty c1930
Billy Blayney 1925
Billy Blayney 1926
+(2) Sarah Annie Sophia PATTERSON b.1876 (England) ; m.10Apr1909 [2nd wife of Thomas Blayney 1862-1919] [dau. of John PATTERSON d.<1908]  4 Henry ("Harry") BLAYNEY b.18Oct1909  3 Frederick BLAYNEY b.1858 (Belfast) [Aged 25 at wedding 16Jul1882]; Occ. Stone Cutter. d.3Jan1907 or 13Jan1907 (Pulmonary TB) aged 48 in Belfast ; Death Certificate has son-in-law as Joseph SCOTT. + Mary Ann HOWARD b.1857/8 or 1862; d.13Jul1935 (Belfast) m.16Jul1882 (St Annes Cathedral, Church of Ireland) [dau. of John Howard, labourer] 4 Elizabeth BLAYNEY b.1878 (Belfast); Aged 22 at wedding + Joseph SCOTT m.1Jan1900  4 Margaret BLAYNEY b.30Apr1883 (Belfast); Occ. Spinner + Charles HARDING b~1878; m.24Dec1902 (St Annes Cathedral Church of Ireland, Belfast); widower; Occ. Labourer  [son of Richard HARDNG] 4 John BLAYNEY b.1884; Occ. Stonecutter (at 28 Tamar Street, Belfast in 1908 ) A batchelor farmer John BLAYNEY died of septicaemia on 1Jan1936 4 Charlotte BLAYNEY b.12Sep1887 (Belfast) + David MAXWELL m.7Jul1906 (Dundela Presbyterian)  4 Sarah BLAYNEY b.8May1889 + James JONES m.25Dec1909 (Mountpottinger Baptist Tabernacle, Belfast)  4 Harriet BLAYNEY b.13Apr1891 (Belfast)  + Mr CLARKE 19Jun1910 (Belfast)  4 Edward BLAYNEY b.18Mar1893  + Caroline DREW m.23Mar1913 (Belfast)  4 Thomas BLAYNEY b.26Apr1895 (Belfast)  4 Frederick BLAYNEY b.31Aug1897 (Belfast)  + Ketty MURPHY b.~1900; m.28Mar1928 (Registry Office, Belfast)  4 Henry BLAYNEY b.4Jun1899 (Belfast) ; Occ. Labourer + Martha Mildred SLOAN b~1898; m.15Sep1919 (Ballymacarrett Church of Ireland)  5 dau. BLAYNEY b.31May1937; d.31May1937 4 James Robert BLAYNEY b.17Jul1901 (Belfast) ; d.20Mar1953 ... who was one (last) of 10 children  + Martha MONTGOMERY 5 Edward BLAYNEY b.24Aug1932 (Belfast); d.24Sep1913 Served in the Merchant navy  Living BLAYNEY view family (?p/w problem) 5 John BLAYNEY b.c1939 (Belfast); d.14March1940 (Belfast) 3 John BLAYNEY b.1870; d.11Feb1950 ; Occ. Stone Cutter; Baptist + Mary (Minnie) Jane DALE b.1872; m.18Sep1896 (Belfast) ; d.28Dec1956 age 86  [so b.~1870] 4 James BLAYNEY b.28Oct1897 (Belfast)  A James Blayney married a Ms Nicholl 31Aug1918 (Belfast)  A James Blayney married a Ms Montgomery 16July1923 (Belfast)  4 Charlotte K BLAYNEY b.9Oct1900 (Belfast)  4 Thomas BLAYNEY b.25Jan1904 4 Margaret BLAYNEY b.27Dec1908 (Belfast)  3 Elizabeth BLAYNEY b.16Jun1865  + Thomas McCLELLAND m.2Sep1889 (Regent Street Baptist Church, Belfast); Occ. Mechanic
(2nd wife) 1912
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