5 names joined
| Name | Born | Where Born | Father's Job | age at death | Commissioned | rank | medals | Date joined ADRIC | reason for leaving | Job in 1939 | Fate |
| Iago JB | ? | ? | ? | ? | See Jago JB | ||||||
| Ibbotson F | 1893 | Yorks | Manager | ? | 1917 Apr | Lt | Aug 1920 | Feb 1921 Permitted to resign | Salesman | ? | |
| Ibbotson LHP | 1892 | Cheshire | Importer | 82 | 1915 Jan | Lt | CdeG | Oct 1920 | Jan 1921 Permanent Cadet RIC | Salesman in Australia | Palestine Police. Emigrated & died Aus |
| Imlay AG | 1889 | Scotland | Upholsterer | 75 | 1917 Jul | Lt | Sep 1920 | Jan 1922 | CT Practitioner | Emigrated to Canada. Returned & died UK | |
| Ireland BJ | 1896 | Gloucs | Labourer | 80 | 1918 Jun | Lt | Nov 1920 | Jan 1922 | Salesman | Died UK | |
| Ireson E | 1883 | London | Packer | 63 | 1915 May | Lt | Sep 1920 | Jan 1921 Permitted to resign | Clerk LCC | Died UK |