| McKay | Mrs H. M. | Bencubbin | Chevrolet | MM ● 30 | Mount Marshall Road Board | 1927-28 |
| McKay | Mrs L. | 485 Hay Street, Perth | Humberette | 101 | Metro Private Car | 1922-23 |
| McKay | Mrs L. | Leake Street, Cottesloe | Overland | 1914 | Metro Private Car | 1922-23 |
| McKay | Mrs L. | Leake Street, Cottesloe | Overland | 1914 | Metro Private Car | 1923-24 |
| McKay | Mrs L. | Leake Street, Cottesloe | Overland | 1914 | Metro Private Car | 1924-25 |
| McKay | Mrs L. | 9 Leake Street, Cottesloe | Oldsmobile | 3813 | Metro Hire or Trade | 1926-27 |
| McKay | Mrs L. | 9 Leake Street, Cottesloe | Hudson | 10715 | Metro Hire or Trade | 1927-28 |
| McKay | N. | Goomalling | Ford | GO ● 76 | Goomalling Road Board | 1924-25 |
| McKay | N. | Goomalling | Ford | GO ● 76 | Goomalling Road Board | 1925-26 |
| McKay | N. | Benjaberring | Chevrolet Truck | WM ● 252 | Wyalkatchem Road Board | 1926-27 |
| McKay | N. | Goomalling | Ford | GO ● 76 | Goomalling Road Board | 1926-27 |
| McKay | N. | Goomalling | Ford | GO ● 76 | Goomalling Road Board | 1927-28 |
| McKay | N. | Benjaberring | Chevrolet Truck | WM ● 252 | Wyalkatchem Road Board | 1927-28 |
| McKay | N. B. | Benjaberring | Dodge | WM ● 6 | Wyalkatchem Road Board | 1922-23 |
| McKay | N. F. B. | - | Motorcycle | DN 1 | Dowerin Road Board | 1915 |
| McKay | N. F. B. | Benjaberring | Essex | WM ● 6 | Wyalkatchem Road Board | 1923-24 |
| McKay | N. F. B. | Benjaberring | Essex | WM ● 6 | Wyalkatchem Road Board | 1924-25 |
| McKay | Neil | Goomalling | Ford | GO ● 76 | Goomalling Road Board | 1923-24 |
| McKay | Neil | Benjaberring | Essex | WM ● 6 | Wyalkatchem Road Board | 1925-26 |
| McKay | Neil | Benjaberring | Essex | WM ● 6 | Wyalkatchem Road Board | 1926-27 |
| McKay | Neil | Benjaberring | Essex | WM ● 6 | Wyalkatchem Road Board | 1927-28 |
| McKay | O. | C/o H. V. McKay Perth | Dodge | 2342 | Metro Private Car | 1927-28 |
| McKay | P. | Meckering | Ford | ME ● 57 | Meckering Road Board | 1922-23 |
| McKay | P. | Meckering | Ford | ME ● 57 | Meckering Road Board | 1924-25 |
| McKay | P. | Meckering | Ford | ME ● 57 | Meckering Road Board | 1925-26 |
| McKay | P. | Meckering | Ford | ME ● 57 | Meckering Road Board | 1926-27 |
| McKay | P. | Burgoyne Street | Ford | N 190 | Northam Municipality | 1927-28 |
| McKay | R. | - | Overland | Y ● 17 | York Road Board | 1917-18 |
| McKay | R. | - | Overland 20 H.P. | Y ● 17 | York Road Board | 1919 |
| McKay | R. | - | Overland 20 H.P. | Y ● 17 | York Road Board | 1922-23 |
| McKay | R. | Meckering | Ford | ME ● 57 | Meckering Road Board | 1923-24 |
| McKay | R. H. | Ejanding | Chevrolet | D ● 167 | Dowerin Road Board | 1927-28 |
| McKay | R. W. | Moora | Chevrolet | M ● 43 | Moora Road Board | 1923-24 |
| McKay | R. W. | Moora | Chevrolet | M ● 43 | Moora Road Board | 1924-25 |
| McKay | R. W. | Moora | Chevrolet | M ● 43 | Moora Road Board | 1925-26 |
| McKay | R. W. | - | Willys-Knight | M ● 43 | Moora Road Board | 1927-28 |
| McKay | S. | Lake Grace | Dodge | LG ● 25 | Lake Grace Road Board | 1925-26 |
| McKay | S. | Lake Grace | Dodge | LG ● 25 | Lake Grace Road Board | 1926-27 |
| McKay | S. | Lake Grace | Dodge | LG ● 25 | Lake Grace Road Board | 1927-28 |
| McKay | S. K. | Roebourne | Overland | R ● 20 | Roebourne Road Board | 1926-27 |
| McKay | S. L. | Lake Grace | Dodge | LG ● 25 | Lake Grace Road Board | 1924-25 |
| McKay | S. P. | Munda Station, via Port Hedland | Ford 15 H.P. | R 8 | Roebourne Road Board | 1916 |
| McKay | S. P. | Balmoral Station | B.S.A. | R ● 1 | Roebourne Road Board | 1919 |
| McKay | T. | York | Chevrolet | Y ● 104 | York Road Board | 1924-25 |
| McKay | T. S. | Hannan Street | Chevrolet | KMC 120 | Kalgoorlie Municipal Council | 1922-23 |
| McKay | Thos | York | Chevrolet | Y ● 104 | York Road Board | 1925-26 |
| McKay | Thos. | York | Chevrolet | Y ● 104 | York Road Board | 1926-27 |
| McKay | Thos. | York | Ford | Y ● 104 | York Road Board | 1927-28 |
| McKay | W. A. | 2 Forrest Street, Mount Lawley | Cleveland | 7330 | Metro Private Car | 1926-27 |
| McKay | W. A. | C/o Fauldings Murray Street | Chrysler | 13652 | Metro Private Car | 1926-27 |
