O'Leary family genealogy
FOTHACH Canaan, the fifth son of Luy Maccon, the 113th Monarch of Ireland who is No. 59 on the "Coffey" pedigree, was the ancestor of OLaeghaire;[1] anglicised O'Leary, and Leary.
59. Luy Maccon.
60.Fothach Canaan: his son.
61. Duach: his son.
62. Treana: his son.
63. Eirc: his son.
64. Ros ("ros:" Irish, a promontory): his son; a quo O'Ruis, anglicised Ross and Rush.
65. Laeghaire: his son; a quo O'Leary.
66. Fiach: his son.
67. Dunlang: his son.
68. Ros (2): his son.
69. Main: his son.
70. Aongus (or Æneas): his son.
71. Earc: his son.
72. Conor Cliodhna: his son.
73. Teige: his son.
74. Donoch naTuaima ("tuaim:" Irish, a dyke or fence): his son; a quo O'Tuaima, anglicised Toomey, Tuomey, and Twomey.
75. Conamnan: his son.
76. Dermod: his son.
77. Cumumhan: his son.
78. Donoch: his son.
79. Teige (2): his son.
80. Maolseaghlainn: his son.
81. Teige (3): his son.
82. Maolseaghlainn (2): his son.
83. Tomhas Mór: his son.
84. Tomhas Oge: his son.
85. Athbiadh: his son.
86. Cumumhan (2): his son.
87. Amhailgadh: his son.
88. Dunlang (2): his son.
89. Art: his son.
90. Teige (4): his son; had a brother named Luighdhach.
91. Dermod: son of Teige.
92. Conogher O'Leary: his son; first assumed this sirname.
93. Donogh: his son; married to Ellen, dau. of Dermod O'Crowley; d. 4th Jan., 1637.
94. Amhailgadh (or Auliff) O'Leary: his son; had a brother named Conogher.
Notes
[1] O'Laeghaire: For the derivation of this sirname, see Note, under the "O'Leary" pedigree (Line of Heber), ante.