1. IOR/R/20/C/1-1266 Reference (shelfmark): IOR/R/20/C/1-1266 Title: Protectorate Secretary's files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1922-1967 Extent: 1268 files
2. IOR/R/20/C/1-9 Reference (shelfmark): IOR/R/20/C/1-9 Title: Secret papers on security: intelligence reports Collection Area: India Office Records and Private Papers Languages: English Date Range: 1930-1935 Extent: 9 files
3. IOR/R/20/C/1248-1266 Reference (shelfmark): IOR/R/20/C/1248-1266 Title: Miscellaneous records of the Protectorate administration Collection Area: India Office Records and Private Papers Languages: English Date Range: 1922-1967 Extent: 19 files
4. IOR/R/20/C/10-1247 Reference (shelfmark): IOR/R/20/C/10-1247 Title: Ordinary, secret and confidential files relating to the Aden Protectorate, Kamaran island and foreign affaires Collection Area: India Office Records and Private Papers Languages: English Date Range: 1938-1940 Extent: 1240 files
5. IOR/R/20/C/9 Reference (shelfmark): IOR/R/20/C/9 Title: File [] Khormaksar Defence Scheme Collection Area: India Office Records and Private Papers Languages: English Date Range: 1932-1935 Extent: 1 file
6. IOR/R/20/C/1248 Reference (shelfmark): IOR/R/20/C/1248 Title: Miscellaneous Protectorate/Political Secretary's files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1922-1936 Extent: 1 file
7. IOR/R/20/C/1249 Reference (shelfmark): IOR/R/20/C/1249 Title: Miscellaneous Protectorate/Political Secretary's files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1924-1935 Extent: 1 file
8. IOR/R/20/C/1250 Reference (shelfmark): IOR/R/20/C/1250 Title: Miscellaneous Protectorate/Political Secretary's files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1930-1936 Extent: 1 file
9. IOR/R/20/C/1251 Reference (shelfmark): IOR/R/20/C/1251 Title: Miscellaneous Protectorate/Political Secretary's files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1932-1936 Extent: 1 file
10. IOR/R/20/C/1252 Reference (shelfmark): IOR/R/20/C/1252 Title: Miscellaneous Protectorate/Political Secretary's files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1937-1938 Extent: 1 file