Hi Whirly 
There is a Cemetery at Dysart which was often used for
Thornton deaths, can you remember if you could see the sea
About a half mile away, when you were in the cemetery?
Dysart Cemetery has 3 Robert Barclays
Dys      1160   Robert   Barclay   died 1929   
Dys      1476   Robert   Barclay   Susan   Barclay
Dys      2165   Robert   Barclay   Barbara Simpson
Did some investigation to pass the time.which may be of some use
In your mums research, get back if you need any explaining
Robert & Ann were married in the parish of  Ceres which is near Cupar
  
Marriage Certificate 22.11.1878 at Craigrothie
Robert Barclay ( Ploughman ) age 27 Strathmilgo
Parents Robert Barclay ( linen weaver) deceased& Elizabeth Bruce
Ann Latto ( Domestic servent ) age 28 Craigrothie Ceres
Parents Thomas Latto ( Ploughman) deceased & Janet Hain
Witiness Marjory Latto & William Barclay
Robert would be born 1850
Robert b1850  father was  Robert born about 1811is shown in 1841 census  his father being Archibald Barclay
              
Piece: SCT1841/457 Place: Strathmiglo -Fife Enumeration District: 1
Civil Parish: Strathmiglo Ecclesiastical Parish, Village or Island: -
Folio: 1 Page: 6
Address: Newbiggin
    Surname   First name(s)   Sex   Age   Occupation   Where Born   Remarks   
    BARCLAY   Archibald   M   55   Agricultural Labourer    Fife        
    BARCLAY   Kieth   F   60       Fife        
    BARCLAY   Robert   M   30   Linen Hand Loom Weaver    Outside Census County (1841)        
    BARCLAY   Helen   F   25       Outside Census County (1841)        
    BARCLAY   Rachel   F   20   Linen Hand Loom Weaver    Outside Census County (1841)        
    BARCLAY   Mary   F   15       Outside Census County (1841)        
    DAVIDSON   Helen   F   70       Fife   
Piece: SCT1851/457 Place: Strathmiglo -Fife Enumeration District: 1
Civil Parish: Strathmiglo Ecclesiastical Parish, Village or Island: Strathmiglo
Folio: 0 Page: 11 Schedule: 41
Address: Newbiggin
     Surname   First name(s)   Rel   Status   Sex   Age   Occupation   Where Born   Remarks   
    BARCLAY   Robert   Head   M   M   44   Linen Weaver    Perth - Abernethy    Add. - modern spelling is Newbigging.    
    BARCLAY   Elisabeth   Wife   M   F   29   -    Kinross-shire - Portmoak        
    BARCLAY   Archibald   Son   U   M   8   At Home    Fife - Strathmiglo        
    BARCLAY   Agnes   Dau   U   F   6   At Home    Fife - Strathmiglo        
    BARCLAY   John   Son   U   M   3   -    Fife - Strathmiglo        
    BARCLAY   Robert   Son   U   M   3m   -    Fife - Strathmiglo     
  
Robert Barclay & Elizabeth Bruce
Married 15.11.1841 Strathmilgo
IGI gives the children
12. AGNES BARCLAY - International Genealogical Index 
Gender: Female Birth: 02 JUN 1844 Strathmiglo, Fife, Scotland 
 
 13. ROBERT BARCLAY - International Genealogical Index 
Gender: Male Birth: 11 DEC 1850 Strathmiglo, Fife, Scotland 
 
 14. ELIZABETH BARCLAY - International Genealogical Index 
Gender: Female Birth: 02 SEP 1857 Strathmiglo, Fife, Scotland 
 
 15. ARCHIBALD BARCLAY - International Genealogical Index 
Gender: Male Birth: 01 SEP 1842 Strathmiglo, Fife, Scotland 
 
 16. WILLIAM BARCLAY - International Genealogical Index 
Gender: Male Birth: 12 FEB 1855 Strathmiglo, Fife, Scotland 
 
 17. MARY BARCLAY - International Genealogical Index 
Gender: Female Birth: 27 FEB 1859 Strathmiglo, Fife, Scotland 
 
 18. JOHN BARCLAY - International Genealogical Index 
Gender: Male Birth: 06 JUN 1847 Strathmiglo, Fife, Scotland 
Elizabeth Bruce born 19.7.1821 Portmoak Kinross Scotland
Parents John Bruce & Agnes Morison
IGI
John Bruce, Mother: Agnes Morison
1. JOHN BRUCE - International Genealogical Index 
Gender: Male Birth: 13 NOV 1819 Christening: 21 NOV 1819 Strathmiglo
 
 3. HELEN BRUCE - International Genealogical Index 
Gender: Female Birth: 31 AUG 1817 Christening: 21 SEP 1817 Portmoak,
 
  5. ELISABETH BRUCE - International Genealogical Index 
Gender: Female Birth: 19 JUL 1821 Christening: 30 JUL 1821 Portmoak
 
 
1851 census
BARCLAY   Robert   Head   M   M   44   Linen Weaver    Perth - Abernethy    Add. - modern spelling is Newbigging.    
    BARCLAY   Elisabeth   Wife   M   F   29   -    Kinross-shire - Portmoak        
    BARCLAY   Archibald   Son   U   M   8   At Home    Fife - Strathmiglo        
    BARCLAY   Agnes   Dau   U   F   6   At Home    Fife - Strathmiglo        
    BARCLAY   John   Son   U   M   3   -    Fife - Strathmiglo
1881 census   Dwelling:   Cordon Cot House
   Census Place:   Abernethy, Perth, Scotland
   Source:   FHL Film 0203500     GRO Ref    Volume 326    EnumDist 3    Page 23
   Marr   Age   Sex   Birthplace
Robert BARCLAY   M   30    M   Strathmiglo, Fife, Scotland
   Rel:   Head
   Occ:   Agricultural Labourer
Ann BARCLAY   M   30    F   Dunfermline, Fife, Scotland
   Rel:   Wife ( LATTO )
Robert BARCLAY       1    M   Abernethy, Perth, Scotland
   Rel:   Son
Norrie