| Montgomerie Nelson & Edwards Pty Ltd | - | Ec. Chbrs | Chev | 6423 | Metro Private Car | 1924-25 |
| Montgomery | - | Merredin | Rugby | MD ● 141 | Merredin Road Board | 1926-27 |
| Montgomery | A. | Leake Street, Peppermint Grove | Overland | 1737 | Metro Private Car | 1923-24 |
| Montgomery | A. M. P. | 30 Richardson Street | Bradbury 3½ H.P. Motorcycle | P 358 | Perth Municipality | 1915 |
| Montgomery | A. M. P. | 30 Richardson Street, Perth | Bradbury 3½ H.P. Motorcycle | P 358 | Perth Municipality | 1916 |
| Montgomery | A. M. P. | 30 Richardson Street | Douglas 2¾ H.P. Motorcycle | P 885 | Perth Municipality | 1919 |
| Montgomery | A. M. P. | 28 First Avenue, Mount Lawley | Dort | 447 | Metro Private Car | 1924-25 |
| Montgomery | A. M. P. | 28 1st Avenue, Mount Lawley | Dort | 447 | Metro Private Car | 1925-26 |
| Montgomery | C. | Brookton | B.S.A. 3½ H.P. Motorcycle | BO 1 | Brookton Road Board | 1916 |
| Montgomery | C. | Brookton | B.S.A. 3½ H.P. Motorcycle | BO ● 1 | Brookton Road Board | 1917-18 |
| Montgomery | C. | Brookton | B.S.A. 3½ H.P. Motorcycle | BO ● 1 | Brookton Road Board | 1919 |
| Montgomery | C. | Brookton | B.S.A. 3½ H.P. Motorcycle | BO ● 1 | Brookton Road Board | 1922-23 |
| Montgomery | C. J. | Boulder | Ford 16 H.P. | B 12 | Boulder Municipality | 1916 |
| Montgomery | C. J. | Boulder | Ford 16 H.P. | B 12 | Boulder Municipality | 1917-18 |
| Montgomery | C. J. | Albany | Dodge | A 35 | Municipality of Albany | 1925-26 |
| Montgomery | C. J. | Albany | Hudson | A 35 | Municipality of Albany | 1926-27 |
| Montgomery | Charles | 249 Burt Street, Boulder | Ford | B 25 | Boulder Municipality | 1922-23 |
| Montgomery | Charles | 249 Burt Street, Boulder | Ford | B 25 | Boulder Municipality | 1923-24 |
| Montgomery | Charles | 249 Burt Street, Boulder | Ford | B 25 | Boulder Municipality | 1924-25 |
| Montgomery | G. | Gnowangerup | Overland | GN ● 104 | Gnowangerup Road Board | 1925-26 |
| Montgomery | G. | Gnowangerup | Overland | GN ● 104 | Gnowangerup Road Board | 1926-27 |
| Montgomery | G. | Gnowangerup | Overland | GN ● 104 | Gnowangerup Road Board | 1927-28 |
| Montgomery | J. | Brookton | Ford 20 H.P. | BO ● 6 | Brookton Road Board | 1919 |
| Montgomery | J. | Brookton | Ford 20 H.P. for Trade or Hire | BO ● 6 | Brookton Road Board | 1922-23 |
| Montgomery | J. | Brookton | Ford 20 H.P. | BO ● 6 | Brookton Road Board | 1923-24 |
| Montgomery | J. | Brookton | Ford | BO ● 6 | Brookton Road Board | 1924-25 |
| Montgomery | J. | Wittenoom Street, Collie | Oakland | CM 80 | Collie Municipality | 1925-26 |
| Montgomery | J. | Wittenoom Street, Collie | Oakland | CM 80 | Collie Municipality | 1926-27 |
| Montgomery | J. | Wittenoom Street, Collie | Oakland | CM 80 | Collie Municipality | 1927-28 |
| Montgomery | Mrs | Albany | Citroen | A 78 | Albany Municipality | 1927-28 |
| Montgomery | Mrs E. D. | Leake Street, Cottesloe | Stephens | 7037 | Metro Private Car | 1926-27 |
| Montgomery | Mrs J. | Albany | Citroen | A 78 | Municipality of Albany | 1926-27 |
| Montgomery | Mrs L. | 28 1st Avenue, Inglewood | Dort | 447 | Metro Private Car | 1926-27 |
| Montgomery | Mrs L. | 28 1st Avenue, Mount Lawley | Dort | 447 | Metro Private Car | 1927-28 |
| Montgomery | R. B. | Reserve Street, Claremont | B.S.A. | 151 | Metro Motorcycle | 1922-23 |
| Montgomery | V. J. | Albany | Hudson | A 35 | Albany Municipality | 1927-28 |
| Montgomery | W. | Pier Street | Ford 20 H.P | EF 36 | East Fremantle Municipality | 1917-18 |
| Montgomery | W. | Leake Street, Peppermint Grove | Overland | 1737 | Metro Private Car | 1922-23 |
| Montgomery | W. | Leake Street, Peppermint Grove | Overland | 1737 | Metro Private Car | 1924-25 |
| Montgomery | W. | Leake Street, Peppermint Grove | Overland | 1737 | Metro Private Car | 1925-26 |
| Montgomery | W. H. | Tanner Street, Middle Swan | Chevrolet Wagon | 10226 | Metro Hire or Trade | 1927-28 |
| Montgomery Bros | - | Brookton | Dodge | BO ● 14 | Brookton Road Board | 1924-25 |
| Montgomery Bros | - | Brookton | Dodge | BO ● 14 | Brookton Road Board | 1925-26 |
| Montgomery Bros | - | Brookton | Dodge | BO ● 14 | Brookton Road Board | 1926-27 |
| Montgomery Bros | - | Bolgart | Dodge | VP ● 81 | Victoria Plains Road Board | 1926-27 |
| Montgomery Bros | - | Merredin | Standard | MD ● 141 | Merredin Road Board | 1927-28 |
| Montgomery Bros | - | Brookton | Dodge | BO ● 14 | Brookton Road Board | 1927-28 |
| Montgomery Bros | - | Bolgart | Dodge | VP ● 81 | Victoria Plains Road Board | 1927-28 |
| Montgomery Bros. | - | Brookton | Dodge | BO ● 37 | Brookton Road Board | 1923-24 |
| Montgomery Smith & Co | - | 10 Howard Street, Perth | Chrysler | 11392 | Metro Private Car | 1926-27 |
