The Irish surname O'Killyn originally appeared in Gaelic as O Cillin.
Early Origins of the O'Killyn family
The surname O'Killyn was first found in County Mayo
(Irish: Maigh Eo) located on the West coast of the Republic of Ireland
in the province of Connacht
, where they held territories was at Ballykilleen since early times. This lofty family were the ancient Chiefs of Fingal, Earls of Fingal and Lords Killeen. Saint Kilian, (also spelled Killian) from the Irish: Cillian, was an Irish missionary bishop and the apostle of Franconia. He was born in Mullagh, County Cavan
, and is the patron saint of the parish of Tuosist, in County Kerry
. Saint Kilian's feast day is July 8th and St. Kilian's Abbey, at Würzburg is named after him. Today there are two Killeen Castles in Ireland: one located at Dunsany, in County Meath
, that dates back to about 1180, but today's structure is a restoration of the 19th century after a fire in 1981. It will include a luxury golf course designed by Jack Nicklaus. The second Killeen Castle is a 17th century castle at Killeen, in Castlegar, County Galway.
Early History of the O'Killyn family
This web page shows only a small excerpt of our O'Killyn research.Another 243 words (17 lines of text) covering the years 1180, 1981, 1180 and 1172 are included under the topic Early O'Killyn History in all our PDF Extended History products and printed products wherever possible.
O'Killyn Spelling Variations
One explanation for the many variations is that scribes and church officials frequently spelled the name as it sounded: an imprecise method at best. Understandably then, various spellings of the surname O'Killyn were found in the many archives researched. These included Killeen, Killen, Killion, Killian, Killin, Gilin, Killan, Killoon, O'Killen, McKillen and many more.
Early Notables of the O'Killyn family (pre 1700)
More information is included under the topic Early O'Killyn Notables in all our PDF Extended History products
and printed products wherever possible.
Migration of the O'Killyn family to the New World and Oceana
Suffering from poverty and racial discrimination, thousands of Irish families
left the island in the 19th century for North America aboard cramped passenger ships. The early migrants became settlers of small tracts of land, and those that came later were often employed in the new cities or transitional work camps. The largest influx of Irish settlers occurred with Great Potato Famine
during the late 1840s. Although the immigrants from this period were often maligned when they arrived in the United States, they provided the cheap labor that was necessary for the development of that country as an industrial power. Early immigration and passenger lists have revealed many immigrants bearing the name O'Killyn: Jenkins Killen, who settled in Virginia in 1805; Alexander, Denis, James, John, Patrick, and Robert Killen, who all arrived in Philadelphia between 1840 and 1860.