The 1815 Census records: at Fleming Square, Maryport
John McCourtie /H/M/35/Rail Lab/Scotland
Ann McCourtie /W/M/55/CUL Cumwhiton?
Robert McCourtie /S/14/Scolar/CUL Crosby
I believe this is the Robert McCourtie who married Jessie Griffin.
I also think John's age is a transcription error and should read '55'. There is a baptism record for a John McCourtie on 15 August 1795, Tinwald, Dumfries, Scotland. Parents are James William McCourtie & Mary Bryden (SCT OPR No: 849/000001)
James & Mary McCourtie had five other children:
William c:4 Jun 1793
Mary 22 Dec 1797
James 6 Mar 1800
Robert Dalzell 11 Jun 1802
Unknown 1 Mar 1804 (this name may be illegible in the OPR register) All children were baptised in Tinwald.
I've not been able to find a marriage for James & Mary or a birth for James William McCourtie, but there are two James McCourties:
James McCourtie c: 1 Apr 1764, Kells. Parents: William & -
James McCourtie c: 13 May 1769, Kells. Parents: John & Margaret (McCaw)
I think Kells is in Kirkcudbright - need to check.
Ann, the wife of John McCourtie, seems to be Ann Hewitson c: 4 Aug 1795, Cumwhiton, Cumberland. Parents: Joseph Hewitson & Jane Grindal (married 2 Aug 1782, Skelton, Cumberland. I have more on this line if anyone is interested.
Hope this helps.