The Cassion surname comes from the Irish Gaelic Mac Caisín, or O Caisín.
The surname Cassion was first found in Munster, where they held a family seat as Chiefs of the Dalcassian race. Irish history, after the Norman Conquest of England, was strongly influenced by the invasion of Strongbow in 1172. Many Irish clanns, sept names were intermixed and family groupings became almost indistinguishable.
This web page shows only a small excerpt of our Cassion research. Another 124 words (9 lines of text) covering the years 1640, 1666, and 1667 are included under the topic Early Cassion History in all our PDF Extended History products and printed products wherever possible.
Spelling variations of this family name include: McCashin, McCashen, O'Cashin, O'Cashen, O'Casheon, Cashion, Cashin, Cashon, Cassin, Cassion, McCashion, Mccashney, McCashon, McKasshine, Keshin, Casheen, Casain, Kasain, McCassin and many more.
More information is included under the topic Early Cassion Notables in all our PDF Extended History products and printed products wherever possible.
Some of the first settlers of this family name or some of its variants were: Henry McCashland, who settled in America in 1737; Dennis McCashin, who arrived at Halifax, N.S. in 1798; Patrick McCashin, who arrived in Pennsylvania in 1805.