Family: Hugh Montgomery / Hon Anna Marie Acheson (F19270)
m. Aug 1778
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Male
Hugh Montgomery
Birth 1739 Tyrone, Northern Ireland 
Death 1797 Tyrone, Northern Ireland Burial Marriage Aug 1778 [1, 2] Father Hugh Montgomery | F19269 Group Sheet Mother Elizabeth Armar | F19269 Group Sheet
Female
Hon Anna Marie Acheson
Birth 1736 Armagh, Northern Ireland Death 10 Apr 1799 Ballycastle, Antrim, Northern Ireland Burial Father 1st Viscount Gosford Archibald Acheson | F60144 Group Sheet Mother Mary Richardson | F60144 Group Sheet
Male
+ Hugh Montgomery
Birth 1779 Fermanagh, Northern Ireland Death 1838 Burial Spouse Maria Dolores Plink | F19271 Marriage 28 Sep 1816 Switzerland
Female
Mary Millicent Montgomery
Birth 1787 Tyrone, Northern Ireland Death 21 Mar 1868 Middlesex, England Burial 25 Mar 1868 Kensal Green, Middlesex, England
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Sources - [S3640] Ancestry.com, Ireland, Marriages in Walker's Hibernian Magazine, 1771-1812, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2014;).
Record for Miss Acheson
https://search.ancestry.com/cgi-bin/sse.dll?db=9141&h=21956&indiv=try - [S3187] Burke, Sir Bernard, A Genealogical and Heraldic History of the Landed Gentry of Ireland, (Name: Harrison & Sons; Location: London, England; Date: 1899;), Montgomery of BlessingbournePage 315Montgomerie, Hugh b. 1540.
A_genealogical_and_heraldic_history_of_the_Ireland.pdf
Book found on Google Books
https://www.google.com/books/edition/A_Genealogical_and_Heraldic_History_of_t/Ha0EAAAAIAAJ?hl=en&gbpv=1&dq=A+Genealogical+and+Heraldic+History+of+the+Landed+Gentry+of+Ireland&printsec=frontcover
- [S3640] Ancestry.com, Ireland, Marriages in Walker's Hibernian Magazine, 1771-1812, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2014;).