|Marriage*||John Williamson married Agnes Sutherland Duncan.1|
|Agnes Sutherland Duncan|
|Last Edited||9 Sep 2012|
- [S1611] Queensland Department of Justice and Attorney-General, marriage certificate 1899/370 (1899), William Duncan Williamson and Annie Stark Ridpath Blair; Registry of Births, Deaths and Marriages, Brisbane.
- [S1614] New South Wales Department of Justice and Attorney General, death certificate 1913/001415 (1913), William Duncan Williamson; Registry of Births Deaths & Marriages, Sydney.