| Regimental number | 5659 |
| Place of birth | Sydney, New South Wales |
| Religion | Church of England |
| Occupation | Clerk |
| Marital status | Single |
| Age at embarkation | 22 |
| Height | 5' 7.5" |
| Weight | 154 lbs |
| Next of kin | Father, Mr W. McArthur Mayo, Rosbery Street, South Brisbane, Queensland |
| Previous military service | Nil |
| Enlistment date | |
| Place of enlistment | Brisbane, Queensland |
| Rank on enlistment | Driver |
| Unit name | 3rd Light Horse Brigade Train, 1st Reinforcement, 12th Company, Australian Army Service Corps |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A54 Runic on |
| Rank from Nominal Roll | Captain |
| Unit from Nominal Roll | Australian Mounted Divisional Train |
| Fate | Returned to Australia |
| Discharge date | |
| Other details |
Commenced return to Australia from Kantara on board HT 'Malta', 3 July 1919; disembarked Melbourne, 11 August 1919; appointment terminated (discharged), Brisbane, 10 October 1919. Medals: 1914-15 Star, British War Medal, Victory Medal |
| Miscellaneous details | Name does not appear on Embarkation Roll. |
| Date of death | |
| Sources | NAA: B2455, MAYO Richard Henry McArthur |