Show ContentsGillogly History, Family Crest & Coats of Arms

Early Origins of the Gillogly family

The surname Gillogly was first found in Leitrim and Roscommon where they held a family seat as a part of the O'Mulvey Clann. Irish history was greatly influenced by the Norman invasion of 1172, and thereafter, the surnames of Irish Gaelic clanns and septs and many of the Norman families became almost indistinguishable. This family name was found later in Sligo. They are believed to be descended through the O'Mulveys from Dermod Ruanach, chief of one of the 'Four Tribes of Tara' and a King of Ireland in the 7th century. 1

Early History of the Gillogly family

This web page shows only a small excerpt of our Gillogly research. Another 66 words (5 lines of text) are included under the topic Early Gillogly History in all our PDF Extended History products and printed products wherever possible.

Gillogly Spelling Variations

Spelling variations of this family name include: Gillooly, Gilhooly, Gillhooly, Gilluly, Gillulie, Gilooly, Gululie, Giluly, Giluley, Gulhouley, Gilhouly, Gollhooley and many more.

Early Notables of the Gillogly family

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


United States Gillogly migration to the United States +

Some of the first settlers of this family name were:

Gillogly Settlers in United States in the 20th Century
  • L. L. Gillogly, who landed in America, in 1908
  • Francis Gillogly, aged 30, who settled in America from Lack, Ireland, in 1912
  • John Gillogly, aged 22, who immigrated to the United States from Mohill, Co. Leitrim, Ireland, in 1920
  • Mary Ann Gillogly, aged 19, who immigrated to America from Mohill, Co. Leitrim, Ireland, in 1920

Canada Gillogly migration to Canada +

Some of the first settlers of this family name were:

Gillogly Settlers in Canada in the 19th Century
  • James Gillogly, who settled in New Brunswick in 1847

Contemporary Notables of the name Gillogly (post 1700) +

  • James J. Gillogly, American computer scientist and cryptographer


  1. 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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