| 1825 | James Spearing acquired 2000 acres of land, which included the current Botanic Garden site. He named it 'Paulsgrove Estate' |
| 1836 | John Leahy purchases 'Paulsgrove' |
| 1839 | After Leahy’s passing, his heirs took brief ownership of the estate |
| 1841 | Robert and Charles Campbell took over the land as the result of a Crown Grant, and subdivided it into 100 farm and housing lots. The area became known as ‘Mount Keera Estate’. |
| 1855 | The three blocks of land which would eventually be purchased by the Hoskins family were bought by John Kenny |
| 1865 | The land was bought by Matthew Hannan |
