| ![Show Contents]() McDempsy History, Family Crest & Coats of Arms
- Origins Available:
 Ireland Today's Irish surnames are underpinned by a multitude of rich histories. The name McDempsy originally appeared in Gaelic as Ó Diomasaigh, from the word "diomasach," which means "proud." 1 Early Origins of the McDempsy familyThe surname McDempsy was first found in King's County and Queen's County, where they were traditional Chiefs of Clanmaliere, a territory that lay on both sides of the river Barrow. It contained parts of Geashill and Phillipstown in Kings County and parts of Portnehinch in Queen's County. They claim descent through the O'Connors of Offaly, specifically the 2nd century Irish King, Cathair Mor. 2 According to O'Hart, they claim descent from through the "Connor" Faley pedigree. Early History of the McDempsy familyThis web page shows only a small excerpt of our McDempsy research. Another 286 words (20 lines of text) covering the years 1172, 1193, 1599, 1631, 1641, 1652 and 1865 are included under the topic Early McDempsy History in all our PDF Extended History products and printed products wherever possible. McDempsy Spelling VariationsBefore widespread literacy came to Ireland, a name was often recorded under several different variations during the life of its bearer. Accordingly, numerous spelling variations were revealed in the search for the origin of the name McDempsy family name. Variations found include Dempsey, O'Dempsey, Dempsy, Dempsay, Dempsie and many more. Early Notables of the McDempsy familyNotable among the family name at this time was Sir Terence O'Dempsey, knighted May 1599, by Robert Devereux, earl of Essex, Lord Lieutenant of Ireland. Terence was created "Baron of Philipstown," and Viscount Clanmaliere, by patent dated 8th July, 1631, temp. Charles I. He had five sons, two of which were clergy:...
Another 52 words (4 lines of text) are included under the topic Early McDempsy Notables in all our PDF Extended History products and printed products wherever possible. Migration of the McDempsy familyThousands of Irish families left for North American shores in the 19th century. These people were searching for a life unencumbered with poverty, hunger, and racial discrimination. Many arrived to eventually find such conditions, but many others simply did not arrive: victims of the diseased, overcrowded ships in which they traveled to the New World. Those who lived to see North American shores were instrumental in the development of the growing nations of Canada and the United States. A thorough examination of passenger and immigration lists has disclosed evidence of many early immigrants of the name McDempsy: Ann, Biddy, Bridget, Catherine, John, and Henry Dempsey who settled in Quebec in 1840; Edward Dempsey settled in New York in 1810; Jeremiah Dempsey settled in Mississippi in 1820.
- MacLysaght, Edward, Irish Families Their Names, Arms and Origins 4th Edition. Dublin: Irish Academic, 1982. Print. (ISBN 0-7165-2364-7)
- O'Hart, John, Irish Pedigrees 5th Edition in 2 Volumes. Baltimore: Genealogical Publishing Company, 1976. Print. (ISBN 0-8063-0737-4)
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