Name
- Hosmon, Sarah Longworth, medical missionary, 1883-19641
- Howson, Margaret, widow, 1877-19771
- IOR/L/PS/10/1351
- IOR/L/PS/10/2151
- IOR/L/PS/18/B4041
- IOR/L/PS/20/C301
- IOR/R/15/1/1471
- IOR/R/15/1/1491
- IOR/R/15/1/1541
- IOR/R/15/1/1651
- IOR/R/15/1/1741
- Ikhwan, military and religious brotherhood, 1912-19301
- Imam of Yemen, 897-19621
- Imperial Airways, 1924-19391
- India Office, Assistant Under-Secretary of State for India, 1858-19471
- India Office, Information Department, 1921-19491
- India Office, Military Secretary, 1809-19471
- India Office, Registrar and Superintendent of Records, Mid 19th century-Mid 20th century1
- India Office, War Staff, 1939-19491
- India Store Department, Mid 19th century-Mid 20th century1