- FondsSJCR - The Records of St John's College
- SubfondsSJAC - Academic and tutorial records
- Series1 - Tutors
- Subseries2 - Tutors' Pupil Files
- Sub-sub-seriesTanner - Joseph Tanner
- Sub-sub-sub-series4 - Correspondence
- Sub-collection4 - EW Lockhart Correspondence
- File24 - Lockhart (1924)
- File25 - Lockhart (1925)
- File26 - Lockhart (1926)
- File27 - Lockhart (1927)
- File28 - Lockhart (1928)
- File29 - Lockhart (1929)
- File30 - Lockhart (1930)
- File31 - Lockhart (1931)