Old Sydneians' Union Society or association Also called 'Old Boys', the group was formed by former students of Sydney Grammar School to maintain the networks they formed during their school years. Milestone Formed 22 Sep 1893 {"name":"Formed","target":"","target_text":null,"date":{"#markup":"<span class='date'>22 Sep 1893<\/span>"},"date_start":"1893-09-22","date_end":"1893-09-22"} Type Society or association {"name":"Society or association","target":"","target_text":null,"date":{"#markup":"<span class='date'><\/span>"},"date_start":null,"date_end":null}