| Regimental number | 609 |
| Place of birth | St Arnaud Victoria |
| Religion | Church of England |
| Occupation | Bank clerk |
| Address | 'Manor House', Bacchus Marsh, Victoria |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Francis H. Crook, 'Manor House', Bacchus Marsh, Victoria |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 4th Light Horse Regiment, 1st Reinforcement |
| AWM Embarkation Roll number | 10/9/2 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A43 Barunga on |
| Rank from Nominal Roll | Lance Corporal |
| Unit from Nominal Roll | 22nd C Light Horse Regiment |
| Fate | Returned to Australia |
| Family/military connections | Brothers: 1360 Sergeant Francis Herbert CROOK, 1st Field Artillery Brigade, returned to Australia, 5 April 1918; 2178 Driver Cecil Werribee CROOK, 1st Field Artillery Brigade, returned to Australia, 8 October 1918; 5333 Pte James Robert CROOK, 22nd Bn, returned to Australia, 18 January 1919. |
| Other details |
Medals: 1914-15 Star, British War Medal, Victory Medal |