Keenan family genealogy
Chiefs in Fermanagh
Arms: Gu. a lion pass. guard. or, in base a human heart ar.
MURTAGH, the fourth son of Ceallach who is No. 97 on the "O'Hart" pedigree, was the ancestor of O'Caoinain ("caoin:" Irish, mild, "an" one who; Heb. "chen," favour); anglicised O'Keenan, Keenan, Kennan, Kinane, Kinnane, and Keon.
From the said Murtagh are also descended the Ulster families of Dongan, Donegan, Rogan, etc.
A worthy representative of the O'Keenan family is The Right Hon. Sir Patrick Joseph Keenan, P.C., C.B., K.C.M.G., M.R.I.A., of Delville, Glasnevin, Dublin; b. 1826, and living in 1887; son of John Keenan, of Phibsborough, Dublin; m. in 1860, Elizabeth-Agnes, daughter of the late Michael Quinn, J.P., of Waterville, co. Limerick, and has had issue. Sir Patrick Joseph Keenan is a Resident Commissioner of National Education in Ireland; a Governor of the Royal Hibernian Military School, and J.P. co. Dublin; was employed in 1869 in the West Indies as Commissioner to inquire into the state of education in Trinidad; and in 1878 in Malta as Commissioner to inquire into the University, Lyceums, and Primary Schools of that colony. For his Educational services in Trinidad and Malta he was created a K.C.M.G. in 1881.