- FondsJeffreys - Papers and correspondence of Sir Harold Jeffreys
- SeriesA1-A230 - Biographical Papers
- SubseriesA118-A127 - Certificates
- ItemA118 - College of Preceptors Lower Forms Examination 'Midsummer 1903'
- ItemA119 - County Council of Durham Minor Scholarships' Examination 1903
- ItemA120 - University of Durham Junior Local Examination July 1905
- ItemA121 - University of Durham Senior Local Examination July 1906
- ItemA122 - University of Durham Senior Local Examination July 1907
- ItemA123 - University of London certificate
- ItemA124 - Board of Education certificate
- 3 more...