21. IOR/R/20/E/268 Reference (shelfmark): IOR/R/20/E/268 Title: [Accounts] [first part of volume missing] Collection Area: India Office Records and Private Papers Languages: English Date Range: Jan 1905-Oct 1905 Extent: 1 volume
22. IOR/R/20/E/4 Reference (shelfmark): IOR/R/20/E/4 Title: Vol III File 6 Aden Collection Area: India Office Records and Private Papers Languages: English Date Range: Jan 1839-Feb 1839 Extent: 1 volume
23. IOR/R/20/E/70 Reference (shelfmark): IOR/R/20/E/70 Title: Vol I File 4 Aden affairs [Secret] Collection Area: India Office Records and Private Papers Languages: English Date Range: Jan 1864-Nov 1864 Extent: 1 volume
24. IOR/R/20/E/233 Reference (shelfmark): IOR/R/20/E/233 Title: File 315 Pt I Aden Boundary Commission Collection Area: India Office Records and Private Papers Languages: English Date Range: Jan 1902-May 1902 Extent: 1 volume
25. IOR/R/20/E/234 Reference (shelfmark): IOR/R/20/E/234 Title: File 315 Pt II Aden Boundary Commission Collection Area: India Office Records and Private Papers Languages: English Date Range: Jun 1902-Dec 1902 Extent: 1 volume
26. IOR/R/20/E/240 Reference (shelfmark): IOR/R/20/E/240 Title: File 173 Pt I Aden Boundary Commission Collection Area: India Office Records and Private Papers Languages: English Date Range: Jan 1903-Jun 1903 Extent: 1 volume
27. IOR/R/20/E/241 Reference (shelfmark): IOR/R/20/E/241 Title: File 173 Pt II Aden Boundary Commission Collection Area: India Office Records and Private Papers Languages: English Date Range: May 1903-Sep 1903 Extent: 1 volume
28. IOR/R/20/E/242 Reference (shelfmark): IOR/R/20/E/242 Title: File 173 Pt III Aden Boundary Commission Collection Area: India Office Records and Private Papers Languages: English Date Range: Aug 1903-Dec 1903 Extent: 1 volume
29. IOR/R/20/E/19 Reference (shelfmark): IOR/R/20/E/19 Title: Lt Christopher's proceedings, etc Collection Area: India Office Records and Private Papers Languages: English Date Range: 1842-1843 Extent: 1 volume
30. IOR/R/20/E/2, Item 3 Reference (shelfmark): IOR/R/20/E/2, Item 3 Title: File 367 Aden: sketches Collection Area: India Office Records and Private Papers Languages: English Date Range: 1838 Extent: 1 part volume