While the Anglicized versions of Irish names are familiar to most people, many Irish names have a long and proud Gaelic heritage that is often unknown. The original Gaelic form of the name O'Costain is Mac Oistigin which is probably derived from the pet form of the English name Roger, which is Hodgkin.
Early Origins of the O'Costain family
The surname O'Costain was first found in Leix
(Irish: Laois) formerly known as Queen's County, located in central Ireland
, in Leinster
Province, where they held a family seat
from ancient times.
Early History of the O'Costain family
This web page shows only a small excerpt of our O'Costain research.Another 97 words (7 lines of text) covering the years 103 and 1039 are included under the topic Early O'Costain History in all our PDF Extended History products and printed products wherever possible.
O'Costain Spelling Variations
Scribes and church officials, lacking today's standardized spelling rules, recorded names by how they were pronounced. This imprecise guide often led to the misleading result of one person's name being recorded under several different spellings. Numerous spelling variations
of the surname O'Costain are preserved in documents of the family history. The various spellings of the name that were found include Costigan, Costigen, Costigin, McCostigan and others.
Early Notables of the O'Costain family (pre 1700)
More information is included under the topic Early O'Costain Notables in all our PDF Extended History products
and printed products wherever possible.
Migration of the O'Costain family to the New World and Oceana
A massive wave of Irish immigrants hit North America during the 19th century. Although many early Irish immigrants made a carefully planned decision to leave left Ireland
for the promise of free land, by the 1840s immigrants were fleeing a famine stricken land in desperation. The condition of Ireland
during the Great Potato Famine
of the late 1840s can be attributed to a rapidly expanding population and English imperial policies. Those Irish families
that arrived in North America were essential to its rapid social, industrial, and economic development. Passenger and immigration lists have revealed a number of early Irish immigrants bearing the name O'Costain: Michael, James, Joseph, Lawrence, Patt, Thomas (three of this name), and William Costigan, who arrived in Philadelphia, Pennsylvania between 1850 and 1870.