| Duffield | S. | Contractor | Fremantle | 1881 | WA Almanack |
| Duffield | S. | - | Fremantle | 1882 | Herald Almanack |
| Duffield | S. | Contractor | Fremantle | 1882 | WA Almanack |
| Duffield | S. | Householder | Fremantle | 1883 | Herald Almanack |
| Duffield | S. | Contractor | Fremantle | 1883 | WA Almanack |
| Duffield | S. | Householder | Fremantle | 1884 | Herald Almanack |
| Duffield | S. | Contractor | Fremantle | 1884 | WA Almanack |
| Duffield | S. | House holder | Fremantle | 1885 | Herald Almanack |
| Duffield | S. | Contractor | Fremantle | 1886 | WA Almanack |
| Duffield | S. | Contractor | Fremantle | 1887 | WA Almanack |
| Duffield | S. | Contractor | Fremantle | 1888 | WA Almanack |
| Duffield | S. | Contractor | Fremantle | 1889 | WA Almanack |
| Duffield | Samual | Light-house Kpr. | Fremantle (Rottnest) | 1878 | Herald Almanack |
| Duffield | Samuel | Light Housekeeper, Rottnest | Fremantle | 1876 | Herald Almanack |
| Duffield | Samuel | Light House Keeper | Fremantle (Rottnest) | 1877 | Herald Almanack |
| Duffield | Samuel | Lighthouse Keeper,Rottnest | Fremantle | 1879 | WA Almanack |
| Duffield | W. | Shopman | Fremantle | 1886 | WA Almanack |
| Duffield | W. | Shopman | Fremantle | 1887 | WA Almanack |
| Duffield | W. | Store Asst. | Fremantle | 1888 | WA Almanack |
| Duffield | W. | Store Assistant | Fremantle | 1889 | WA Almanack |
| Duffield | W. | | Delisle Street, North Fremantle | 1897 | Witton's Directory |
| Duffield | W. H. | Cooper Customs Department | Fremantle | 1863 | WA Almanack |
| Duffield | W. H. | Cooper Customs Department | Fremantle | 1865 | WA Almanack |
| Duffield | W. H. | Cooper Customs Department | Fremantle | 1866 | WA Almanack |
| Duffield | W. H. | Cooper Customs Department | Fremantle | 1867 | WA Almanack |
| Duffield | W. H. | Cooper Customs Establishment | Fremantle | 1868 | WA Almanack |
| Duffield | W. H. | Cooper Customs | Fremantle | 1869 | WA Almanack |
| Duffield | W. H. | Cooper Customs | Fremantle | 1870 | WA Almanack |
| Duffield | W. H. | Cooper at Customs | Fremantle | 1872 | WA Almanack |
| Duffield | W. H. | Cooper,Customs | Fremantle | 1873 | Herald Almanack |
| Duffield | W. H. | Cpr. at Customs. | Fremantle | 1873 | WA Almanack |
| Duffield | W. H. | Cooper, Customs | Fremantle | 1874 | Herald Almanack |
| Duffield | W. H. | Cpr. at Customs. | Fremantle | 1874 | WA Almanack |
| Duffield | W. H. | Cooper,Customs | Fremantle | 1875 | Herald Almanack |
| Duffield | W. H. | Cooper Customs | Fremantle | 1875 | WA Almanack |
| Duffield | W.H | Cooper Customs Department | Fremantle | 1864 | WA Almanack |
| Duffields | P. | Assistant Landing Waiter | Victoria District (Geraldton) | 1880 | WA Almanack |
| Duffy | B. | | Lamb Street, Perth | 1897 | Witton's Directory |
| Duffy | Befnard | Frmr. and Grazr. | Wanneroo | 1882 | WA Almanack |
| Duffy | Bernard | (Wanneroo) | Perth | 1874 | WA Almanack |
| Duffy | Bernard | Farmer and Grazr | Wanneroo | 1884 | WA Almanack |
| Duffy | Bernard | Farmerand Grazier | Wanneroo | 1886 | WA Almanack |
| Duffy | Bernard | Farmer and Grazier | Wanneroo | 1887 | WA Almanack |
| Duffy | Bernard | Farmer & Grazier | Wanneroo | 1888 | WA Almanack |
| Duffy | Bernard. | Farmer & Grazier | Wanneroo | 1881 | WA Almanack |
| Duffy | Bernhard | Mailman | Wanneroo | 1889 | WA Almanack |
| Duffy | E. | Police Constable | Mingenew | 1897 | Witton's Directory |
| Duffy | H. | Miner | Nannine | 1897 | Witton's Directory |
| Duffy | J. | Bootmaker | Kojonup | 1882 | Herald Almanack |
| Duffy | J. | Bootmaker | Kojonup | 1883 | Herald Almanack |
