| Millne | David | Borden | Essex | GN ● 5 | Gnowangerup Road Board | 1923-24 |
| Millord | A. H. L. | James Street, Guildford | Chrysler | 16007 | Metro Private Car | 1927-28 |
| Mills | - | Subiaco | Ansolda | 1984 | Metro Private Car | 1926-27 |
| Mills | A. J. | 31 North Street, Midland Junction | Scat | 1075 | Metro Private Car | 1923-24 |
| Mills | A. J. | Adrian Street, Palmyra | Ford | 1838 | Metro Private Car | 1924-25 |
| Mills | A. J. | 31 North Street, Midland Junction | Scat | 1075 | Metro Private Car | 1924-25 |
| Mills | A. J. | 31 North Street, Midland Junction | Ford | 1516 | Metro Private Car | 1925-26 |
| Mills | A. J. | Adrian Street, Palmyra | Ford | 1838 | Metro Private Car | 1925-26 |
| Mills | A. J. | 31 North Street, Midland Junction | Ford | 1516 | Metro Private Car | 1926-27 |
| Mills | A. J. | Adrian Street, Palmyra | Ford | 1838 | Metro Private Car | 1927-28 |
| Mills | Albert J. | Newcastle Road, Midland Junction | Buick | 1650 | Metro Private Car | 1927-28 |
| Mills | C. A. | Fitzgerald Street | Overland 13 H.P. | N 14 | Northam Municipality | 1915 |
| Mills | C. A. H. | Fitzgerald Street | Overland 13 H.P. | N 14 | Northam Municipality | 1916 |
| Mills | C. A. H. | Fitzgerald Street | Overland | N 14 | Northam Municipality | 1917-18 |
| Mills | C. A. H. | Fitzgerald Street | Overland | N 14 | Northam Municipality | 1919 |
| Mills | C. A. H. | Fitzgerald Street | Dodge | N 14 | Northam Municipality | 1922-23 |
| Mills | C. A. H. | Fitzgerald Street | Dodge | N 14 | Northam Municipality | 1923-24 |
| Mills | C. A. H. | Fitzgerald Street | Dodge | N 14 | Northam Municipality | 1924-25 |
| Mills | C. A. H. | Fitzgerald Street | Dodge | N 14 | Northam Municipality | 1925-26 |
| Mills | C. A. H. | Fitzgerald Street | Dodge | N 14 | Northam Municipality | 1926-27 |
| Mills | C. A. H. | Fitzgerald Street | Dodge | N 28 | Northam Municipality | 1927-28 |
| Mills | C. T. | Denmark | Ford | DE ● 86 | Denmark Road Board | 1927-28 |
| Mills | Capt A. | Wolseley Gardens Fremantle | Buick | 7736 | Metro Private Car | 1926-27 |
| Mills | Capt. A. | Welseley Gardens Fremantle | Buick | 7736 | Metro Private Car | 1925-26 |
| Mills | Capt. A. | Wolseley Gardens, Fremantle | Buick | 7736 | Metro Private Car | 1927-28 |
| Mills | D. | George Street, Kalgoorlie | Dodge for Trade or Hire | K ● 10 | Kalgoorlie Road Board | 1922-23 |
| Mills | D. | George Street | Dodge | K ● 10 | Kalgoorlie Road Board | 1923-24 |
| Mills | D. W. | Leonora | Dodge | LM ● 70 | Leonora-Malcolm Road Board | 1926-27 |
| Mills | D. W. | Leonora | Dodge | LM ● 70 | Leonora-Malcolm Road Board | 1927-28 |
| Mills | E & F. | 7 Collie Street, Fremantle | Chevrolet Wagon | 3929 | Metro Hire or Trade | 1924-25 |
| Mills | E. | 170 Aberdeen Street, Perth | Ford | 1318 | Metro Private Car | 1924-25 |
| Mills | E. | Armadale | Chevrolet Wagon | 3687 | Metro Hire or Trade | 1925-26 |
| Mills | E. | Armadale | Chevrolet Wagon | 3687 | Metro Hire or Trade | 1926-27 |
| Mills | E. | Armadale | Chevrolet Wagon | 3687 | Metro Hire or Trade | 1927-28 |
| Mills | E. & C. | 7 Collie Street, Fremantle | Chevrolet Bus | 3859 | Metro Hire or Trade | 1925-26 |
| Mills | E. & C. | 7 Collie Street, Fremantle | Oakland | 3887 | Metro Hire or Trade | 1926-27 |
| Mills | E. & C. | 7 Collie Street, Fremantle | Hudson | 10707 | Metro Hire or Trade | 1927-28 |
| Mills | E. F. | 7 Collie Street, Fremantle | Chevrolet Wagon | 3929 | Metro Hire or Trade | 1925-26 |
| Mills | Ernie | No. 24860 | Triumph 3½ H.P. Motorcycle | CMC 2 A | Coolgardie Municipality | 1915 |
| Mills | F. G. | Fitzgerald Street | Dodge | N 90 | Northam Municipality | 1923-24 |
| Mills | F. G. | Fitzgerald Street | Dodge | N 90 | Northam Municipality | 1924-25 |
| Mills | F. H. | Greenhills | Dodge | Y ● 98 | York Road Board | 1925-26 |
| Mills | F. H. | Greenhills | Dodge | Y ● 98 | York Road Board | 1926-27 |
| Mills | F. H. | Greenhills | Dodge | Y ● 98 | York Road Board | 1927-28 |
| Mills | Frank L. | 5 Throsell Street, Perth | Oakland | 12521 | Metro Private Car | 1927-28 |
| Mills | G. | Yarloop | Ford | H ● 151 | Harvey Road Board | 1926-27 |
| Mills | G. | Yarloop | Ford | H ● 151 | Harvey Road Board | 1927-28 |
| Mills | G. E. | 22 Knebsworth Avenue | B.S.A. 3½ H.P. Motorcycle | P 766 | Perth Municipality | 1919 |
| Mills | Geo. H. | Katanning | Ford | KA ● 300 | Katanning Road Board | 1927-28 |
| Mills | H. F. & Co. | 17 Queen Street | Ford 20 H.P. | P 751 | Perth Municipality | 1919 |