41. IOR/L/MIL/7/613 Reference (shelfmark): IOR/L/MIL/7/613 Title: Collection 4/40 Incidence of cost of proposed improvement to Aden defences. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1904 Extent: 1 file
42. IOR/L/MIL/7/615 Reference (shelfmark): IOR/L/MIL/7/615 Title: Collection 4/42 War-time formation of signal company for duty at Aden. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1917 Extent: 1 file
43. IOR/L/MIL/7/621 Reference (shelfmark): IOR/L/MIL/7/621 Title: Collection 4/48 Mixed British and Indian machine gun company at Aden. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1917-1919 Extent: 1 file
44. IOR/L/MIL/7/636 Reference (shelfmark): IOR/L/MIL/7/636 Title: Collection 4/65 Accommodation at Aden: recommendations for improvements based on General Atkinson's report. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1924-1927 Extent: 1 file
45. IOR/L/MIL/7/577 Reference (shelfmark): IOR/L/MIL/7/577 Title: Collection 4/9 Progress of works on forts Morbut and Tarshayne. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1885-1886 Extent: 1 file
46. IOR/L/MIL/7/587 Reference (shelfmark): IOR/L/MIL/7/587 Title: Collection 4/16 Increased estimates for forts Morbut and Tarshayne, and delay in designs. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1887-1888 Extent: 1 file
47. IOR/L/MIL/7/571 Reference (shelfmark): IOR/L/MIL/7/571 Title: Collection 4/3 Scheme for temporary defence of Aden against an unexpected attack. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1884-1885 Extent: 1 file
48. IOR/L/MIL/7/579 Reference (shelfmark): IOR/L/MIL/7/579 Title: Collection 4/11 Appointment of two surveyors and two clerks for six months. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1885-1889 Extent: 1 file
49. IOR/L/MIL/7/623 Reference (shelfmark): IOR/L/MIL/7/623 Title: Collection 4/50 Appointment of Major General W. Delamain as Governor of Aden. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1919 Extent: 1 file
50. IOR/L/MIL/7/637 Reference (shelfmark): IOR/L/MIL/7/637 Title: Collection 4/66 Appointment of officer to command Royal Air Force at Aden. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1928 Extent: 1 file