| Howlett | Miss. | Teacher Govt. Girls School | Perth | 1882 | Herald Almanack |
| Howlett | Mrs E. | | Lamb Street, Perth | 1897 | Witton's Directory |
| Howlett | Mrs. | Householder | Perth | 1882 | Herald Almanack |
| Howlett | Mrs. | Householder | Perth | 1883 | Herald Almanack |
| Howlett | Mrs. | Householder | Perth | 1884 | Herald Almanack |
| Howlett | Mrs. | Householder | Perth | 1885 | Herald Almanack |
| Howlett | Mrs. | Householder | Perth | 1887 | WA Almanack |
| Howlett | Mrs. | Householder | Perth | 1888 | WA Almanack |
| Howlett | Mrs. | Householder | Perth | 1889 | WA Almanack |
| Howlett | Mrs. | | Roe Street, Perth | 1897 | Witton's Directory |
| Howlett | Mrs. C. | - | Perth | 1884 | WA Almanack |
| Howlett | Mrs. H. | Householder | Perth | 1886 | WA Almanack |
| Howlett | S. | Messenger General Post Office | Perth | 1868 | WA Almanack |
| Howlett | S. | Letter-Carrier General Post Office | Perth | 1869 | WA Almanack |
| Howlett | S. | Letter-carrier General Post Office | Perth | 1870 | WA Almanack |
| Howlett | S. | Letter Carrier General Post Office | Perth | 1872 | WA Almanack |
| Howlett | S. | Letter-Carrier G.P.O | Saint George's Terrace, Perth | 1873 | Herald Almanack |
| Howlett | S. | Letr. Car. General Post Office | Perth | 1873 | WA Almanack |
| Howlett | S. | Letter-Carrier G. P. O. | Perth | 1874 | Herald Almanack |
| Howlett | S. | Letr.Cr. General Post Office | Perth | 1874 | WA Almanack |
| Howlett | S. | Letter-Carrier G.P.O | Perth | 1875 | Herald Almanack |
| Howlett | S. | Letter-Carrier G.P.O | Perth | 1875 | WA Almanack |
| Howlett | S. | Letter Carrier G. P. O. | Perth | 1876 | Herald Almanack |
| Howlett | S. | Clerk General Post Office | Perth | 1876 | WA Almanack |
| Howlett | S. | Clerk, G.P.O. | Perth | 1877 | Herald Almanack |
| Howlett | S. | Clerk General Post Office | Perth | 1877 | WA Almanack |
| Howlett | S. | Clerk of G. P. O. | Perth | 1878 | Herald Almanack |
| Howlett | S. | Clerk G. P. O. | Perth | 1879 | Herald Almanack |
| Howlett | S. | Clerk General Post Office | Perth | 1879 | WA Almanack |
| Howlett | S. | Clerk G.P.O. | Perth | 1880 | Herald Almanack |
| Howlett | S. | Clerk G. P. O | Perth | 1880 | WA Almanack |
| Howlett | S. | Clerk G.P.O | Perth | 1881 | Herald Almanack |
| Howlett | S. | Clerk G.P.O | Perth | 1881 | WA Almanack |
| Howlett | S. | Clerk G. P. O. | Perth | 1882 | Herald Almanack |
| Howlett | S. | Gardener | Perth | 1882 | WA Almanack |
| Howlett | S. | Clerk G. P. O. | Perth | 1883 | Herald Almanack |
| Howlett | S. | Govt. Park | Perth | 1884 | Herald Almanack |
| Howlett | S. | Clerk General Post Office | Perth | 1884 | WA Almanack |
| Howlett | S. | Clerk G. P. O. | Perth | 1885 | Herald Almanack |
| Howlett | S. | Clerk G.P.O. | Perth | 1886 | WA Almanack |
| Howlett | S. | Clerk G.P.O. | Perth | 1887 | WA Almanack |
| Howlett | S. | Clerk G.P.O. | Perth | 1888 | WA Almanack |
| Howlett | S. | Clerk General Post Office | Perth | 1889 | WA Almanack |
| Howlett | S. | | "Beulah" Leeder Street, Perth | 1897 | Witton's Directory |
| Howlett | T. | Accountant | Geraldton | 1887 | WA Almanack |
| Howlett | T. | Accountant | Geraldton | 1888 | WA Almanack |
| Howlett | T. | Accountant | Geraldton | 1889 | WA Almanack |
| Howlett | W. A. | - | North-West Coast - Roebourne & Cossack | 1878 | Herald Almanack |
| Howlett | W. A. | - | North-West Coast (Roeburne & Cossack) | 1879 | WA Almanack |
| Howlett | W. J. | | Wade Street, Perth | 1897 | Witton's Directory |