41. IOR/R/20/C/2426-2455 Reference (shelfmark): IOR/R/20/C/2426-2455 Title: Dhala Collection Area: India Office Records and Private Papers Languages: English Date Range: 1948-1966 Extent: 30 files
42. IOR/R/20/C/2485-2506 Reference (shelfmark): IOR/R/20/C/2485-2506 Title: Zingibar Collection Area: India Office Records and Private Papers Languages: English Date Range: 1959-1966 Extent: 22 files
43. IOR/R/20/G/228-255 Reference (shelfmark): IOR/R/20/G/228-255 Title: India Collection Area: India Office Records and Private Papers Languages: English Date Range: 1861-1928 Extent: 28 volumes
44. IOR/R/20/G/257-258 Reference (shelfmark): IOR/R/20/G/257-258 Title: Palestine Collection Area: India Office Records and Private Papers Languages: English Date Range: 1938 Extent: 2 volumes
45. IOR/R/20/A/4885-4906 Reference (shelfmark): IOR/R/20/A/4885-4906 Title: Yemen files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1904-1938 Extent: 22 files
46. IOR/R/20/A/4907-4921 Reference (shelfmark): IOR/R/20/A/4907-4921 Title: Idrisi files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1916-1924 Extent: 15 files
47. IOR/R/20/A/4922-4935 Reference (shelfmark): IOR/R/20/A/4922-4935 Title: Hodeida files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1918-1937 Extent: 14 files
48. IOR/R/20/G/121-128 Reference (shelfmark): IOR/R/20/G/121-128 Title: Orders in Council, Royal Instructions and Government Orders Collection Area: India Office Records and Private Papers Languages: English Date Range: 1936-1967 Extent: 1 volume
49. IOR/R/20/G/139-178 Reference (shelfmark): IOR/R/20/G/139-178 Title: Social and economic development Scope & Content: trade reports; development plans and reports; mineral resources; irrigation; agriculture; industry; health and medicine; building and construction; police; prisons; archives; television; census. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1909-1966 Extent: 40 volumes
50. IOR/R/20/C/2244-2425 Reference (shelfmark): IOR/R/20/C/2244-2425 Title: Files of WAP Adviser concerning tribes Collection Area: India Office Records and Private Papers Languages: English Date Range: 1924-1965 Extent: 182 files