Wm Trotter: "who was an aunt of William, Robert & Chas. Otway (?) Mayne."
She and John Brown also had two other sons who died as infants, making a total of 15 children.

TFPL, Apr 2008: She d. after 1799 as she was alive when his testament was processed in the Glasgow Commissary Court in 29 March of that year.
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I have searched for her possible death in the Scots records, using ‘Mayne’, Mayn’ and ‘Main’ for her surname with death between 1799 and 1838, when she would have been close to 100.  Nothing appeared relevant.  So I tried her with the surname of Brown and with ‘Other Details’ set to John Brown; But this did not show up anything clear either.

She had/has 422 descendants; do none of them know anything about her death?  (I certainly don’t!)
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Nor did she leave any testament in Scotland.  Nor any will in England.
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But Happy Haggis has provided this report of her death:

“December 14, 1823
THE EDINBURGH ANNUAL REGISTER 1823 - Page 373
‘.... Glasgow, Mrs Brown, relict of the late John Brown, Esq., merchant in Glasgow.’”

The trouble with this is that the page 373 of the 1823 Register does not contain this report.  I have downloaded (thanks to archive.org once more) the Chronicle section of he Register, pages 1 to 476, and have then searched through all of the deaths section.

I have also done the same for the 1824 Register, but cannot do it for 1822 as the Chronicle section has not been saved.
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After double transcription by Happy Haggis from their image of the Memorial stone and my transcript from the image on the Billion Graves site, this is memorial No 48 in the Ramshorn Graveyard, Glasgow:


“                          SACRED
“                     TO THE MEMORY OF
“                        JOHN BROWN
“                  AND HIS WIFE JANE MAYNE
“                           ALSO
“                HELEN BROWN THEIR DAUGHTER
“               WHO DIED SEPTR 1850, AGED 82
“                     ———————————————
“                         ALSO OF
“                     ARCHIBALD BROWN
“                  WHO DIED 9TH AUG 1827
“                    AND HIS DAUGHTER
“                     ELIZABETH ANNE
“                WHO DIED 20TH SEPTR 1827
“                      ALSO HIS WIFE
“                     GRACE HAMILTON
“                 WHO DIED 21ST JANY 1844

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From the Lyon Register of Arms for her father’s brother Edward:

No 57
Edward Mayne of Powis Merch’t in Lisbon descended of the ancient house of Mayne of Lochwood in Scotland Bears argent a Chevron gules Voided of the field between two Pheone in Chief sable & and flower d’Lis in base azure All within a bordure Waved of the Last:  Crest a Dexter hand issuing from the torse holding a plain cross Gules:  Motto in an Scroll above Virtute fortuna Comes Ext’d 20 October 1730.
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Argent a chevron Gules voided of the field between two pheons in chief Sable and a fleur de lys in base Azure all within a bordure wavy of the last.

Lyon matriculation of 1730.

The entry in the Glasgow, Lanarks marriage register is:

“John Brown Mercht in Glasg: & Jean Main da of the deceased Wm Main of Logie comeared before the middle session July 7 & produced a certificate of their irregular marriage dated 2 January 1758 to which they adhered.”
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