.... - I am beginning to wonder if it is a middle name he used as it is very left field of the traditional James, John and Walter names 
Briellen
The forename Archibald may not be as uncommon as you think.
Here are a few MIs listing Archibald SCOTTs in the general area identified by Reiver.
Location: Canonbie Old Graveyard, DFS
1.
In Memory of William SCOTT in who died on his passage from Jamaica to New York in America September 15th 1801 aged 38 years
Also Archibald SCOTT, his son, who died 12th July 1805 aged 38 years
2.
In Memory of William SCOTT, late of Penton Mill, who died at Newcastleton November 16th 1849 aged 69 years
Also Margaret GOODFELLOW, his spouse, who died January 8th 1857 aged 60 years
And Archibald, their son, who died at Lockport, County of Niagra, State of New York, North America, May 30th 1840 aged 21 years
Also Elizabeth, his daughter, who died January 23rd 1841 aged 20 years
Also William, his son, who died in infancy
3.
Erected in Memory of Archibald SCOTT, tenant in Shillingmoss, who died March 17th 1817 aged 71 years
Also Adam SCOTT, his son, tenant in Shillingmoss, born 18th July 17[-]3, died 16th April 1834
Also Jane NIXON, spouse to above Archibald SCOTT, who died 12th August 1845 aged 82 years
Also Nelly SCOTT, their daughter, who died July 13th 1802 aged 14 months
Location: Hoddam (Old Parish Churchyard, Hoddam Cross), DFS
Thomas SCOTT, son to Archibald SCOTT in Hoddom Mains, who died 11th August 1801 aged 25 years
Location: Langholm (Old) Cemetery, DFS
1.
Sacred to the Memory of Archibald SCOTT, Merchant in Langholm, who died the 7 of May 1807 aged 77 years
Sybella GRAHAM his spouse, who died the 12 of January 1814 aged 58 years
Margaret SCOTT his daughter, who died the 17 of February 1791 aged 2 years
Archibald SCOTT his son, who died the 12 of August 1818 aged 26 years
Sacred to the Memory of Mary, daughter of George SCOTT, Merchant in Langholm, she died May 17th 1830 aged 18
months Jane his daughter, died July 20th 1835 aged 2 years
A second Mary, his daughter, died August 11th 1835 aged 4½ years
John his son, died February 5th 1837 aged 15 months
Jane MURRAY his spouse, she died 19th January 1842 aged 41 years
George his son, died 25th July 1852 aged 27 years
Also of the said George SCOTT, who died the 26th day of January 1874 aged 79 years
Mary Jane his daughter, died 11th of February 1891 aged 52 years
Sybella Graham SCOTT his daughter, died 1st January 1908 aged 81 years, last member of the family
2.
In Memory of Louisa Margaret Sarah SCOT, daughter of Archibald SCOT, Writer in Langholm,
and Louisa Margaret Johnstone LINDSAY his spouse Who died 25th February 1823 aged eleven months
Location: Wauchope Cemetery, Langholm, DFS
In Memory of Robert, son of Thomas SCOTT, who died in Langholm August 9th 1854 aged 2 years
Also the said Thomas SCOTT, who died 28th January 1871 aged 59 years
Also Mary his daughter, who died 27th August 1877 aged 28 years
Also Mary LITTLE his wife, who died October 1895 aged 75 years
Also Andrew SCOTT, Skinner, their son, who died at Greenock 1904 aged 64 years
In Memory of John SCOTT, Carrier from Manchester to Glasgow, who died January 18th 1806 aged 48 years
Also of Archibald SCOTT his brother, who died at Kingmoor in Cumberland, June 21st 1809 aged 60 years
