| | | |
| CARRIER COMPANIES | |
| CARRIER PIGEON UNITS | |
| CASH OFFICES | |
| CASUALTY CLEARING STATIONS | |
| | BT MEDICAL UNITS | |
| | NT 1 CASUALTY CLEARING STATION | |
| | NT 102 CASUALTY CLEARING STATION | |
| | NT 104 CASUALTY CLEARING STATION | |
| | NT 105 CASUALTY CLEARING STATION | |
| | NT 106 CASUALTY CLEARING STATION | |
| | NT 109 CASUALTY CLEARING STATION | |
| | NT 110 CASUALTY CLEARING STATION | |
| | NT 111 CASUALTY CLEARING STATION | |
| | NT 2 CASUALTY CLEARING STATION | |
| | NT 2/1 CASUALTY CLEARING STATION | |
| | NT 2/2 CASUALTY CLEARING STATION | |
| | NT 2/3 CASUALTY CLEARING STATION | |
| | NT 2/4 CASUALTY CLEARING STATION | |
| | NT 3 CASUALTY CLEARING STATION | |
| CATERPILLAR CLUB | |
| CATHOLIC UNITED SERVICES AUXILIARY | |
| CAVALRY REGIMENTS | |
| CAVALRY UNITS | |
| CAVALRY UNITS (BOER WAR PERIOD) | |
| CAVALRY UNITS (W1 PERIOD) | |
| CAVALRY UNITS (W2 PERIOD) | |
| CENEF | |
| CENSORSHIP UNITS | |
| CENTRAL BUREAU OF INTELLIGENCE | |
| CENTRAL FLYING SCHOOLS | |