You might find it useful to look further to the godparents of John Bruce’s children.
I have had a quick look and added some information for you.
John Bruce bapt 30 March 1769 St Helier Jersey
Godparents: Thomas Irwin, Peter Grant, Elizabeth Freathy
Elizabeth Bruce bapt 24 march 1771 St Helier Jersey
Godparents: John Forsyth, Isabella Williams, Elizabeth Jones
Charles Bruce bapt 16 Jun 1773 St Helier Jersey
Godparents: John Grigg, Richard Norwood, Jane Gardiner, Mary Irwin
There are some papers regarding Charles Bruce’s pension for 38 year service as Serjeant in the Royal Horse Artillery
Baptism for his daughter Sarah in 1816 Eastbourne. his occupation - Barrack Serjeant
1841 and 1851 census has him in Eastbourne (in the army)
https://www.familysearch.org/ark:/61903/1:1:SGJ2-Z23Charles Died 1853 Deptford, Kent
Jane Bruce (Bruss) bapt 24 Dec 1775 St Helier Jersey
Godparents: William Freethy, Margarite Anderson, Catherine Duglass.
Note FREELY godparents for John (1769) and Jane (1775)• Elizabeth (Fairchild) Freethy - wife of William, master gunner - burial 4 May 1784, Jersey St Saviour
• William Freethy - master gunner - burial 7 June 1801 , Jersey St Saviour
William Bruce bapt 24 Jan 1779 St Helier Jersey
Godparents: Robert Easson, Alexander Bruce, Jane Bruce
The
Godparent Alexander Bruce may have been a brother to John Bruce, and perhaps Jane was Alexander’s wife.
I found this – but don’t know if it is related to the above Alexander and Jane.
Burial in Deptford, Kent - 22 Oct 1820 - Alexander Bruce. Age 64 (rigger) Abode New Row.
Burial in Deptford - 21 Mar 1821 - Jane Bruce (widow). Age 73, Abode New Row.
