| Owston | W. | Shipowner & Importer | Fremantle | 1874 | Herald Almanack |
| Owston | W. | Shipowner & Importer | Fremantle | 1874 | WA Almanack |
| Owston | W. | Shipowner & Importer | Fremantle | 1875 | Herald Almanack |
| Owston | W. | Shipowner and Importer | Fremantle | 1875 | WA Almanack |
| Owston | W. | Shipowner and Importer | Fremantle | 1876 | WA Almanack |
| Owston | W. | Shipowner & Importer | Fremantle | 1877 | Herald Almanack |
| Owston | W. | Shipowner and Importer | Fremantle | 1877 | WA Almanack |
| Owston | W. | Shipowner & Imptr. | Fremantle | 1878 | Herald Almanack |
| Owston | W. | Shipowner & Imptr. | Fremantle | 1879 | Herald Almanack |
| Owston | W. | Shipowner & Importer | Fremantle | 1879 | WA Almanack |
| Owston | W. | Shipowner & Imptr. | Fremantle | 1880 | WA Almanack |
| Owston | W. | Shipowner & Impoter | Fremantle | 1881 | WA Almanack |
| Owston | W. | Shipowner & Imptr. | Fremantle | 1882 | WA Almanack |
| Owston | W. | Shipowner & Impr. | Fremantle | 1883 | WA Almanack |
| Owston | W. | Shipowner and Impr | Fremantle | 1884 | WA Almanack |
| Owston | W. | Shipowner and Importer | Fremantle | 1886 | WA Almanack |
| Owston | W. | Shipowner and Importer | Fremantle | 1887 | WA Almanack |
| Owston | W. | Shipowner and Importer | Fremantle | 1888 | WA Almanack |
| Owston | W. | Shipowner and Importer | Fremantle | 1889 | WA Almanack |
| Owston | W. Jr. | Shipowner and Importer | Fremantle | 1888 | WA Almanack |
| Owston | W. jun. | Boat Builder | Fremantle | 1874 | WA Almanack |
| Owston | W. jun. | Clerk | Fremantle | 1879 | WA Almanack |
| Owston | W. jun. | Clerk | Fremantle | 1880 | WA Almanack |
| Owston | W. jun. | Shipowner & Impoter | Fremantle | 1881 | WA Almanack |
| Owston | W. jun. | Shipowner | Fremantle | 1882 | WA Almanack |
| Owston | W. jun. | Shipowner & Impr. | Fremantle | 1883 | WA Almanack |
| Owston | W. jun. | Shipowner and Impr | Fremantle | 1884 | WA Almanack |
| Owston | W. Jun. | Shipowner and Importer | Fremantle | 1887 | WA Almanack |
| Owston | W. Junr. | - | Fremantle | 1880 | Herald Almanack |
| Owston | W. Junr. | - | Fremantle | 1881 | Herald Almanack |
| Owston | W. Junr. | - | Fremantle | 1882 | Herald Almanack |
| Owston | W. Junr. | - | Fremantle | 1883 | Herald Almanack |
| Owston | W. Junr. | - | Fremantle | 1884 | Herald Almanack |
| Owston | W. Junr. | - | Fremantle | 1885 | Herald Almanack |
| Owston | W. Senr. | - | Fremantle | 1880 | Herald Almanack |
| Owston | W. Senr. | - | Fremantle | 1881 | Herald Almanack |
| Owston | W. Senr. | Pearse & Owston Ship Owners & Importers | Fremantle | 1882 | Herald Almanack |
| Owston | W. Senr. | Pearse & Owston Ship Owner & Importers | Fremantle | 1883 | Herald Almanack |
| Owston | W. Senr. | Pearse & Owston, Ship Owners & Importers | Fremantle | 1884 | Herald Almanack |
| Owston | W. Senr. | Shipowners & Importers | Fremantle (Pearse & Owston) | 1885 | Herald Almanack |
| Owston | W.jun. | Shipowner and Importer | Fremantle | 1886 | WA Almanack |
| Oxenam | R. | Grazier | Northampton | 1883 | Herald Almanack |
| Oxenham | G. | Grazier | Victoria District (Northampton) | 1880 | WA Almanack |
| Oxenham | J. | Grazier | Victoria Districts (Northampton) | 1882 | WA Almanack |
| Oxenham | R. | Grazier | Mines | 1873 | Herald Almanack |
| Oxenham | R. | Grazier | Victoria District (Northampton) | 1874 | WA Almanack |
| Oxenham | R. | Grazier | Victoria District (Mines & Northampton) | 1876 | WA Almanack |
| Oxenham | R. | Grazier | Northampton | 1877 | Herald Almanack |
| Oxenham | R. | Grazier | Victoria District (Northampton) | 1877 | WA Almanack |
| Oxenham | R. | Grazier | Northampton | 1878 | Herald Almanack |
