Major-General of Artillery
* 2nd of October 1893
† 23rd of September 1942
(Хуго Янович Каулер)
| 1919-12-29 | Lieutenant-Colonel (Estonian Army) |
| 1927-02-24 | Colonel (Estonian Army) |
| 1937-02-24 | Major-General (Estonian Army) |
| 1940-12-29 | Major-General of Artillery |
| 1923-XX-XX | – | 1924-XX-XX | Commanding Officer 1st Artillery Regiment, Estonian Army |
| 1924-03-15 | – | 1928-10-01 | Assistant Chief of Coastal, Air and Internal Defence Staff, Estonian Army |
| 1928-10-01 | – | 1930-08-01 | Chief of Staff, 3rd Division, Estonian Army |
| 1930-08-01 | – | 1940-08-XX | Inspector of Artillery, Estonian Army |
| 1940-08-XX | Transferred from the Estonian Army | ||
| 1940-08-XX | – | 1941-06-XX | Commanding Officer Artillery, 182nd Rifle Division |
| 1941-06-XX | – | 1942-09-23 | Arrested |
| 1942-09-23 | Condemned to death | ||
| 1942-09-23 | executed |