The Sabre Squadron | Aero L-159 Alca | Aero L-39 Albatros | No. 33 Squadron RAF | No. 263 Squadron RAF | squadron | Pacific Squadron | No. 45 Squadron RAF | No. 127 Squadron RAF | No. 617 Squadron RAF | No. 43 Squadron RAF | No. 38 Squadron RAF | No. 107 Squadron RAF | German East Asia Squadron | Far East Squadron | Aero Spacelines | Squadron (aviation) | Royal Aero Club | No. 77 Squadron RAAF | No. 71 Squadron RAF | No. 49 Squadron RAF | No. 48 Squadron RAF | No. 2 Squadron RAF | No. 233 Squadron RAF | No. 133 Squadron RAF | Asiatic Squadron | Aero Commander | 44th Fighter Squadron | 24th Tactical Air Support Squadron | 160th Fighter Squadron |
Born in Guthrie, Oklahoma, he joined the Air Service, United States Army in 1917 during World War I. After pilot training in the United States, Lieutenant Robertson was assigned to the 139th Aero Squadron, 2d Pursuit Group, First Army Air Service.