Show ContentsSinnot History, Family Crest & Coats of Arms

Early Origins of the Sinnot family

The surname Sinnot was first found in County Wexford (Irish: Loch Garman), founded by Vikings as Waesfjord, and located in Southeastern Ireland, in the province of Leinster. "Descended from an honourable stock, of Norman extraction. They were possessed of lands in Ireland from the time of the Invasion, and in the county where they first found footing." 1 They claim descent from the Marquis of Lusignan, whose descendants came into England, at or soon after the Norman Conquest.

Early History of the Sinnot family

This web page shows only a small excerpt of our Sinnot research. Another 191 words (14 lines of text) covering the years 1172, 1344 and 1720 are included under the topic Early Sinnot History in all our PDF Extended History products and printed products wherever possible.

Sinnot Spelling Variations

It was found during an investigation of the origins of the name Sinnot that church officials and medieval scribes often spelled the name as it sounded. This practice lead to a single person's being documented under many spelling variations. The name Sinnot has existed in the various shapes: Sinnot, Sinnott, Sinnet, Sinnett, Sinot, Sinott and many more.

Early Notables of the Sinnot family

Notable amongst the family name at this time was

  • Kelly O'Sinnot


United States Sinnot migration to the United States +

Ireland's Great Potato Famine left the country's inhabitants in extreme poverty and starvation. Many families left their homeland for North America for the promise of work, freedom and land ownership. Although the Irish were not free of economic and racial discrimination in North America, they did contribute greatly to the rapid development of bridges, canals, roads, and railways. Eventually, they would be accepted in other areas such as commerce, education, and the arts. An examination of immigration and passenger lists revealed many bearing the name Sinnot:

Sinnot Settlers in United States in the 18th Century
  • Dennis Sinnot, who arrived in New York in 1789 2
Sinnot Settlers in United States in the 19th Century
  • Nicholas Sinnot, who landed in New York, NY in 1811 2
  • Nicholas Sinnot, who settled in New York in 1811
  • Richard Sinnot, who landed in New York, NY in 1816 2
  • Nicholas Sinnot, who arrived in Georgia in 1848
  • Moses Sinnot, who settled in Vermont in 1854

Contemporary Notables of the name Sinnot (post 1700) +

  • Brigadier-General Clayton Sinnot Adams (1890-1965), Italian Chief of Army Postal Service (1942-1943) 3

RMS Lusitania
  • Mr. William Sinnot, English Fireman from England, who worked aboard the RMS Lusitania (1915) and survived the sinking 4


The Sinnot Motto +

The motto was originally a war cry or slogan. Mottoes first began to be shown with arms in the 14th and 15th centuries, but were not in general use until the 17th century. Thus the oldest coats of arms generally do not include a motto. Mottoes seldom form part of the grant of arms: Under most heraldic authorities, a motto is an optional component of the coat of arms, and can be added to or changed at will; many families have chosen not to display a motto.

Motto: Sin not
Motto Translation: If not


  1. Lower, Mark Anthony, Patronymica Britannica, A Dictionary of Family Names of the United Kingdom. London: John Russel Smith, 1860. Print.
  2. Filby, P. William, Meyer, Mary K., Passenger and immigration lists index : a guide to published arrival records of about 500,000 passengers who came to the United States and Canada in the seventeenth, eighteenth, and nineteenth centuries. 1982-1985 Cumulated Supplements in Four Volumes Detroit, Mich. : Gale Research Co., 1985, Print (ISBN 0-8103-1795-8)
  3. Generals of World War II. (Retrieved 2011, October 6) Clayton Adams. Retrieved from http://generals.dk/general/Adams/Clayton_Sinnot/USA.html
  4. Lusitania Passenger List - The Lusitania Resource. (Retrieved 2014, March 7) . Retrieved from http://www.rmslusitania.info/lusitania-passenger-list/


Houseofnames.com on Facebook