| Dugdale | M. I. | - | Willys-Knight | NA ● 16 | Nungarin Road Board | 1924-25 |
| Dugdale | M. I. | Nungarin | Oldsmobile | NA ● 16 | Nungarin Road Board | 1927-28 |
| Duggan | D. | 171 Hay Street, Subiaco | Ford | 890 | Metro Private Car | 1922-23 |
| Duggan | D. | 160 James Street, Perth | Ford | 890 | Metro Private Car | 1924-25 |
| Duggan | D. | 160 James Street, Perth | Ford | 890 | Metro Private Car | 1925-26 |
| Duggan | D. | 160 James Street, Perth | Ford | 890 | Metro Private Car | 1926-27 |
| Duggan | Daniel | 160 James Street, Perth | Ford | 890 | Metro Private Car | 1923-24 |
| Duggan | G. E. | Merredin | De Dion 10 H.P. | MRB 27 | Merredin Road Board | 1915 |
| Duggan | G. E. | Merredin | De Dion 10 H.P. | MD 27 | Merredin Road Board | 1916 |
| Duggan | G. E. | Merredin | Oakland 25 H.P. | MD 22 | Merredin Road Board | 1919 |
| Duggan | G. E. | Melbourne Hotel, Perth | Oakland | 2617 | Metro Private Car | 1923-24 |
| Duggan | G. E. | 37 Harvest Terrace, Perth | Oakland | 2617 | Metro Private Car | 1924-25 |
| Duggan | G. E. | 37 Harvest Terrace, Perth | Oakland | 2617 | Metro Private Car | 1925-26 |
| Duggan | T. | Northam | Car | N ● 36 | Northam Road Board | 1917-18 |
| Duggan | T. | Northam | Ford | N ● 18 | Northam Road Board | 1922-23 |
| Duggan | T. | Northam | Ford | N ● 18 | Northam Road Board | 1923-24 |
| Duggan | T. | Northam | Maxwell | N ● 18 | Northam Road Board | 1924-25 |
| Duggan | T. | Northam | Maxwell | N ● 18 | Northam Road Board | 1925-26 |
| Duggan | Thos. | Northam | Ford 20 H.P. | N 36 | Northam Road Board | 1919 |
| Duirs | Rose | 703 Albany Road, Victoria Park | Singer | 13340 | Metro Private Car | 1927-28 |
| Duke | Giles | Mount Barker | Ford 20 H.P. | PL 14 | Plantagenet Road Board | 1916 |
| Duke | Giles | Mount Barker | Ford 20 H.P. | PL ● 14 | Plantagenet Road Board | 1917-18 |
| Duke | Giles | Mount Barker | Ford 20 H.P. | PL ● 14 | Plantagenet Road Board | 1919 |
| Dullard | Miss Betty | 5 Chatsworth Road, North Perth | Dort | 2637 | Metro Private Car | 1927-28 |
| Dullard | Thos. | 140 Hay Street, Perth | Overland | 1439 | Metro Private Car | 1923-24 |
| Dulley | J. F. | - | Triumph 3½ H.P. Motorcycle | KMC 33 | Kalgoorlie Municipality | 1915 |
| Dulley | J. F. | Lewis Street | Ford | KMC 169 | Kalgoorlie Municipality | 1924-25 |
| Dulley | J. F. | Lewis Street | Ford | KMC 169 | Kalgoorlie Municipal Council | 1925-26 |
| Dumas | R. J. | Metropolitan Water Supply, Perth | Chevrolet | 9073 | Metro Private Car | 1925-26 |
| Dumas | R. J. | Metropolitan Water Supply, Perth | Chevrolet | 9073 | Metro Private Car | 1926-27 |
| Dumas | R. J. | Bunbury Road, Armadale | Chevrolet | 9073 | Metro Private Car | 1927-28 |
| Dumbleyung Road Board | - | Dumbleyung | Chevrolet | DU ● 121 | Dumbleyung Road Board | 1925-26 |
| Dumbleyung Road Board | - | Dumbleyung | Chevrolet | DU ● 121 | Dumbleyung Road Board | 1926-27 |
| Dumbleyung Road Board | - | - | Graham Truck | DU ● 152 | Dumbleyung Road Board | 1926-27 |
| Dumbleyung Road Board | - | Dumbleyung | Chevrolet | DU ● 121 | Dumbleyung Road Board | 1927-28 |
| Dumbleyung Road Board | - | - | Graham Truck | DU ● 152 | Dumbleyung Road Board | 1927-28 |
| Dume | Paskov | Sandstone | Chevrolet | BR ● 17 | Black Range Road Board | 1924-25 |
| Dume | Paskoy | Sandstone | Chevrolet | BR ● 17 | Black Range Road Board | 1925-26 |
| Dume | Paskoy | Sandstone | Chevrolet | BR ● 17 | Black Range Road Board | 1927-28 |
| Dume Paskoy | - | Sandstone | Chevrolet | BR ● 17 | Black Range Road Board | 1926-27 |
| Dumford | R. H. | Parkston | Indian 7-9 H.P. Motorcycle | K ● 11 | Kalgoorlie Road Board | 1922-23 |
| Dumont | C. | Egan Street | Metz | KMC 112 | Kalgoorlie Municipal Council | 1925-26 |
| Dumore Manfg. Co | - | Melbourne Road, Perth | Overland | 2296 | Metro Private Car | 1923-24 |
| Dumsday | L. | Bay View Terrace, Claremont | - | C 62 | Claremont Municipality | 1919 |
| Dumsday | L. | Bay View Terrace, Claremont | Buick | 2288 | Metro Private Car | 1922-23 |
| Dumsday | Laurence | Bay View Terrace, Claremont | Buick | 2288 | Metro Private Car | 1923-24 |
| DUmsday | Laurence | Bay View Terrace, Claremont | Buick | 2288 | Metro Private Car | 1924-25 |
| Dumsday | Laurence | Bay View Terrace, Claremont | Buick | 2288 | Metro Private Car | 1925-26 |
| Dumsday | Laurence | Bay View Terrace, Claremont | Buick | 2288 | Metro Private Car | 1927-28 |
| Dunbar | J. J. | State Abattoirs Midland Junction | Overland | 6928 | Metro Private Car | 1925-26 |
