William Seymour (British Army officer, born 1664)

On 3 October 1694, he took command as [[Colonel (United Kingdom)|Colonel]] of the former [[Lord Cutts' Regiment of Foot]]. It was converted to a [[Marine (military)|Marine]] regiment on 31 July 1698; he remained in command until it was disbanded on 20 May 1699. From 1 March 1701 until 12 February 1702 he was Colonel of the former [[The South Wales Borderers|Sir Edward Dering's Regiment of Foot]], and was then appointed Colonel of [[The King's Own Royal Regiment (Lancaster)|The Queen's Regiment of Foot]]. He commanded it until 25 December 1717; it was a Marine regiment from 1703 until 1710. On 1 June 1702, he was appointed Brigadier-General of the [[Royal Marines|Marine Regiments]], which had that year been reformed for the [[War of the Spanish Succession]].

On 3 October 1694, he took command as [[Colonel (United Kingdom)|Colonel]] of the former [[Lord Cutts' Regiment of Foot]]. It was converted to a [[Marine (military)|Marine]] regiment on 31 July 1698; he remained in command until it was disbanded on 20 May 1699. From 1 March 1701 until 12 February 1702 he was Colonel of the former [[The South Wales Borderers|Sir Edward Dering's Regiment of Foot]], and was then appointed Colonel of [[The King's Own Royal Regiment (Lancaster)|The Queen's Regiment of Foot]]. He commanded it until 25 December 1717; it was a Marine regiment from 1703 until 1710. On 1 June 1702, he was appointed Brigadier-General of the [[Royal Marines|Marine Regiments]], which had that year been reformed for the [[War of the Spanish Succession]].

2nd EDIT 4/22/26

ALSO PLEASE NOTE: DO NOT EDIT THIS PAGE. I have edited this page to reflect the Seymour Merchants for Genealogical Purposes. I have made this as accurate as possible. Gemini AI for Android cross-references digitized online documents within seconds which would take years to find, locate and complete. According to Gemini AI streamlined for Android specifically states; his marriage to Catherine Fitzgerald standard British records often list him as dying without issue, which frequently leads to discrepancies in genealogical research regarding descendants.

The descendants of British records suggest a disconnect between these official records and family history. While the peerage lists the Lieutenant General dying "without issue,' genealogical research often uncovered branches-such as those moving to Ireland or the Americas - that was not included in formal British nobility charts.

If you have found records of children they likely exist in parish records of private family papers rather than official peerage books. I am editing this to report the children and descendants of William Seymour and Catherine Fitzgerald and to clarify some history of this family got invoked in the merchant business and eventually emigrated to Jamaica in the estimated to be around 1815 - 1820. Then in 1845 a couple branches of the family move into southern Ontario. Specifically Goderich, Ontario and setup the merchant industry. Sometime after the railroads were built in Goderich inn the early 1870's the Seymours eventually end up in Detroit, Michigan. One of the family members moved on into Manitoba, then to Saskatchewan. In the early 1900's those descendant eventually end up emigrating to Los Angeles county. Genealogy research with AI tools has shown that these specific Seymour's are related to the 1St Duke of Somerset through the common ancestor William Seymour and his son Bartholomew Seymour. Well established merchants in Kingston Jamaica.

The Seymour Merchant firm operated a fleet of at 10 to 12 vessels during the height of their trade in the late 18th and mid 19th centuries. These ships frequently traveled the "Triangular Trade Route between Dublin, the West African Coast and Kingston, Jamaica. Some of Williams children and grand children operated out of Jamaica and Dublin Ireland or back and forth. They were well established in Kingston, Jamaica. This family i am talking about is the missing meat and potatoes that other researchers like me have been mystified for well over a decade.

The Seymour's who settled in Ballymore Castle (often spelled "Ballymore" rather than "Baltimore" in Irish records) were descendants of William Seymour, who moved to County Galway, Ireland in the 17th Century. This branch became known as the Seymour's of Ballymore, and then maintained the estate for several generations before members of the family migrated to Jamaica and North America.

Records that AI tool Gemini cross referenced; parish records and other documents within seconds.

Children of William Seymour and Catherine Fitzgerald as reported into Wikipedia is the following:

William Seymour (Heir to the Dromana Estate and oldest brother)

Thomas "Yellow" Seymour (Successor to Ballymore Castle)

Bartholomew Seymour (Ballymore Castle)

Jane Seymour

Mary Seymour

Catherine Seymour

Elizabeth Seymour

possible 8th and out of order Edward

possible 9th and out of order John

Respectfully,

Brian Macdonald Seymour

Descendant of:

Lieutenant-General William Seymour & Catherine Fitzgerald

Bartholomew Seymour

Capt. Maurice Bain Seymour

Dr. Maurice Macdonald Seymour

Harold Charles Seymour Sr.

Manly MacDonald Seymour aka Don or Donald

Jeffrey Seymour

Brian Seymour - present, Edited this day of 4/22/2026

Alexander and Aaron Seymour

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