Astronomer Occupation - Astronomer Brisbane, Thomas Makdougall Dawes, William Dunlop, James Martens, Conrad Nangle, James Rumker, Christian Karl Ludwig Scott, William Position - Astronomer of Parramatta Observatory Dunlop, James 1821 - 1847 Position - Astronomer of Sydney Observatory building Nangle, James 1926 - 1941 Scott, William 1858 - 1862