The surname is derived from the original Irish name Ó Dearbháin (from derarbh, certain.) 1
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Early Origins of the Dervan family
The surname Dervan was first found in County Roscommon (Irish: Ros Comáin) located in central Ireland in the province of Connacht, where it was listed in a Tudor Fiant as O'Durvin. In a sixteenth century Fiant for the barony of Rathconrath in County Westmeath, the name is O Dirrevane.
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Early History of the Dervan family
This web page shows only a small excerpt of our Dervan research. More information is included under the topic Early Dervan History in all our PDF Extended History products and printed products wherever possible.
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Dervan Spelling Variations
Spelling variations of this family name include: Dervan, O'Dervan, Dervin, Dervine, Derwin and many more.
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Early Notables of the Dervan family
Notable among the family name at this time was
the Dervan family of Roscommon
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Dervan migration to the United States
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Some of the first settlers of this family name were:
Dervan Settlers in United States in the 19th Century
Mary and William Dervan, who arrived in New York in 1866
Hugh Dervan, who landed in New York in 1867
Contemporary Notables of the name Dervan (post 1700)
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Peter B. Dervan (b. 1945), American chemist awarded the National Medal of Science in 2006
Dervan migration to the United States 
Ireland
