| 1884 |
The Honourable Arthur George Clarence Hawthorn was invited by Australian politician Mr Thomas Macdonald-Paterson to join his law firm to become Macdonald-Paterson, Fitzgerald & Hawthorn Solicitors |
| 1908-1911 |
Mr Hawthorn was appointed the 22nd Treasurer of Queensland |
| 1912-1922 |
Mr Hawthorn was appointed as a member of the Legislative Council (upper house) until it was abolished in 1922 |
| 1928 |
Mr Russell Cuppaidge joined the firm |
| 1931 |
The firm became Hawthorn & Co. |
| 1946-1948 |
Mr Russell Cuppaidge was appointed the President of the Queensland Law Society |
| 1951 |
Mr Badgery joined and the firm became Hawthorn Cuppaidge & Badgery |
| 1974 |
Mr Peter Challen joined |
| 1978 |
Mr Challen became the Principal of Hawthorn Cuppaidge & Badgery |