Show ContentsMcOsker History, Family Crest & Coats of Arms

Irish surnames are all based on the Gaelic language native to Ireland. The original Gaelic form of the name McOsker is Mag Uidhir, which is derived from the word odhar, meaning dun-colored; in the genitive case, the word is uidhir.

Early Origins of the McOsker family

The surname McOsker was first found in County Fermanagh (Irish: Fear Manach) in the southwestern part of Northern Ireland, Province of Ulster.

Early History of the McOsker family

This web page shows only a small excerpt of our McOsker research. Another 92 words (7 lines of text) are included under the topic Early McOsker History in all our PDF Extended History products and printed products wherever possible.

McOsker Spelling Variations

Irish names were rarely spelled consistently in the Middle Ages. Spelling variations of the name McOsker dating from that time include MacCosker, MacCusker, MacOsker, MacOscar and many more.

Early Notables of the McOsker family (pre 1700)

More information is included under the topic Early McOsker Notables in all our PDF Extended History products and printed products wherever possible.

United States McOsker migration to the United States +

The 19th century saw a great wave of Irish families leaving Ireland for the distant shores of North America and Australia. These families often left their homeland hungry, penniless, and destitute due to the policies of England. Those Irish immigrants that survived the long sea passage initially settled on the eastern seaboard of the continent. Some, however, moved north to a then infant Canada as United Empire Loyalists after ironically serving with the English in the American War of Independence. Others that remained in America later joined the westward migration in search of land. The greatest influx of Irish immigrants, though, came to North America during the Great Potato Famine of the late 1840s. Thousands left Ireland at this time for North America, and those who arrived were immediately put to work building railroads, coal mines, bridges, and canals. In fact, the foundations of today's powerful nations of the United States and Canada were to a larger degree built by the Irish. Archival documents indicate that members of the McOsker family relocated to North American shores quite early:

McOsker Settlers in United States in the 19th Century
  • Patrick McOsker, who arrived in Philadelphia in 1822

Contemporary Notables of the name McOsker (post 1700) +

  • Paul L. McOsker, American professor at The Rockefeller University, New York
  • Charles McOsker, American Anti-Infective researcher at Procter & Gamble Pharmaceuticals
  • Tim McOsker, American six-time Primetime Emmy Award nominated producer
  • Ben McOsker, American founder of Load Records, an American experimental music-oriented independent record label based out of Providence, Rhode Island
  • Joseph A. McOsker, American politician, U.S. Vice Consul in Hamilton, 1922 on Facebook