| offer | Henry. | Farmer | Harvey (Perth Road) | 1881 | Herald Almanack |
| Offer | Henry. | Farmer | Wellington District (Brunswick, Collie, Harvey, & Perth Road) | 1881 | WA Almanack |
| Offer | P. N. | Printer | off Murray Street, Perth | 1897 | Witton's Directory |
| Offerman | B. | Modeler | Fremantle | 1887 | WA Almanack |
| office | | | First Floor, Saint George's Chambers, Saint George's Terrace, Perth | 1897 | Witton's Directory |
| Office of Andre Mendel & Co | | Whittington Avenue, Leadenhall St. London, E. C. Central Exploration Investment Co, Ltd, Westralia East Extension Mines, Great Cement Proprietary, Ltd, Great Dyke & Orizaba Cement Claims Ltd, Black Flag Proprietary Ltd | Leevers Chambers, Ford Street, Coolgardie | 1897 | Witton's Directory |
| Office of the Gresham Gold Mining Syndicate, Ltd | | | King Street, Coolgardie | 1897 | Witton's Directory |
| OFlaherty | J. | Frmr. and Grazier | Albany Road (Eticup) | 1880 | WA Almanack |
| OFlaherty | J. | Farmer & Grazier | Albany River (Eticup) | 1884 | WA Almanack |
| OFlaherty | J. | Farmerand Grazier | Albany Road (Eticup) | 1886 | WA Almanack |
| OFlaherty | J. | Farmer & Grazier | Albany Road (Eticup) | 1889 | WA Almanack |
| OFlaherty | Mrs. J. | Houseowner | Albany | 1889 | WA Almanack |
| Ogborn | H. | Commssrt. Carter | Perth | 1873 | WA Almanack |
| Ogborn | H. | Commsrt. Carter | Perth | 1874 | WA Almanack |
| Ogborne | C. | - | Perth | 1882 | WA Almanack |
| Ogborne | C. | Horse Dealer | Perth | 1884 | Herald Almanack |
| Ogborne | C. | Groom | Perth | 1884 | WA Almanack |
| Ogborne | C. | Horse Dealer | Perth | 1885 | Herald Almanack |
| Ogborne | C. | Horse Dealer | Perth | 1886 | WA Almanack |
| Ogborne | C. | Horse Dealer | Perth | 1887 | WA Almanack |
| Ogborne | C. | Horse Dealer | Perth | 1888 | WA Almanack |
| Ogborne | C. | Horse Dealer | Perth | 1889 | WA Almanack |
| Ogborne | E. | Compositor | Perth | 1883 | Herald Almanack |
| Ogborne | E. | Compositor | Perth | 1888 | WA Almanack |
| Ogborne | E. | Compositor | Perth | 1889 | WA Almanack |
| Ogborne | E. K. | Compositor | Perth | 1882 | WA Almanack |
| Ogborne | E. K. | Compositor | Albany | 1884 | WA Almanack |
| Ogborne | E. K. | | Fitzgerald Street, Perth | 1897 | Witton's Directory |
| Ogborne | H Junr. | Cabman | Perth | 1884 | Herald Almanack |
| Ogborne | H. | Commissariat Carter | Roe Street, Perth | 1873 | Herald Almanack |
| Ogborne | H. | Commissariat Carter | Perth | 1874 | Herald Almanack |
| Ogborne | H. | Cmmmssrt Carter | Perth | 1875 | Herald Almanack |
| Ogborne | H. | Cmmmssrt. Carter | Perth | 1875 | WA Almanack |
| Ogborne | H. | Commissariat Carter | Perth | 1876 | Herald Almanack |
| Ogborne | H. | - | Perth | 1876 | WA Almanack |
| Ogborne | H. | - | Perth | 1877 | Herald Almanack |
| Ogborne | H. | - | Perth | 1877 | WA Almanack |
| Ogborne | H. | - | Perth | 1878 | Herald Almanack |
| Ogborne | H. | Coachman H. E. The Governor | Perth | 1879 | Herald Almanack |
| Ogborne | H. | Government's Coachman | Perth | 1879 | WA Almanack |
| Ogborne | H. | Coachman H.E. The Governor | Perth | 1880 | Herald Almanack |
| Ogborne | H. | Coachman H.E. the Governor | Perth | 1881 | Herald Almanack |
| Ogborne | H. | Mail Driver | Guildford | 1881 | WA Almanack |
| Ogborne | H. | - | Perth | 1882 | Herald Almanack |
| Ogborne | H. | Coachman | Perth | 1884 | Herald Almanack |
| Ogborne | H. | Engineer | Perth | 1884 | Herald Almanack |
| Ogborne | H. | Coach Driver | Perth | 1884 | WA Almanack |
| Ogborne | H. | Coachman | Perth | 1885 | Herald Almanack |
| Ogborne | H. Jnr. | Cabman | Perth | 1883 | Herald Almanack |
| Ogborne | H. Jnr. | Cabman | Perth | 1885 | Herald Almanack |
