1^st Bⁿ, New South Wales Regiment

1854:		Sydney Volunteer Rifles │
		1st Regiment New South Wales Rifles │
1860:		1st Regiment New South Wales Rifle Volunteers (Sydney Battalion Volunteer Rifles) │
1876:	2nd Regiment Volunteer Rifles │	1st Regiment Volunteer Rifles │
1878:	2nd Regiment, New South Wales Infantry │	1st Regiment, New South Wales Infantry │
1901:	2nd Infantry Regiment	1st Infantry Regiment
1903:	2nd Australian Infantry Regiment	1st Australian Infantry Regiment
	│	│
1908:	1st Battalion, 2nd Australian Infantry Regiment │	1st Battalion, 1st Australian Infantry Regiment │
1912:	24th Infantry (2nd Sydney Battalion) │	21st Infantry (Sidney Battalion) │
1913:	24th (East Sidney) Infantry	21st (Woollahra) Infantry
	│	│
1915:	│ │	│ │	22th Infantry │
1918:	2nd Battalion,	5th Battalion,	2th Battalion,
	1st Infantry Regiment		19th Infantry Regiment
	│	│	│
	perpetuates 1st Australian Infantry Battalion, AIF │		perpetuates 19th Australian Infantry Battalion, AIF │	perpetuates 20th Australian Infantry Battalion, AIF │	perpetuates 54th Australian Infantry Battalion, AIF │
1921:	1st Battalion │		19th Battalion │	20th Battalion │	54th Battalion │
1927:	1st Battalion (The East Sidney Regiment) │ │		19th Battalion (The South Sidney Regiment) │ │	20th Battalion (The Parramatta and Blue Mountains Regiment) │	54th Battalion (The Lachlan-Macquarie Regiment) │
	│		│	│	│
1929:	│ │ │		│ │ │	linked into 20th/54th Battalion │
1930:	linked into 1st/19th Battalion │			│ │ │
1937:	1st/19th Battalion (The City of Sidney’s Own Regiment) │			│ │ │
1939:	unlinked 1st Battalion (The City of Sidney Regiment) │ │		unlinked and linked into 19th/20th Battalion (The Parramatta and Blue Mountains Regiment) │		unlinked 54st Battalion (The Lachlan-Macquarie Regiment) │
1941:	│ │ │ │ │		unlinked 19th Battalion (The South Sidney Regiment) │ │	unlinked 20th Battalion (The Parramatta and Blue Mountains Regiment) │	│ │ │ │ │
1942:	merged into 1st/45th Australian Infantry Battalion, AIF │		19th Australian Infantry Battalion, AIF │ │	│ │ │ │	│ │ │ │
1943:	│ │ │ │		│ │ │ │	merged into 20th/34th Australian Infantry Battalion, AIF │	54th Australian Infantry Battalion, AIF │ │
1944:	disbanded		│ │	disbanded	disbanded
1945:			disbanded
	perpetuates 2/1st Australian Infantry Battalion, AIF │
1957:	1st Infantry Battalion (Commando) (The City of Sidney’s Own Regiment) │
1960:	1st Battalion (Commando) (The City of Sidney Regiment), New South Wales Regiment
1966:			re-raised as 19th Battalion, Royal New South Wales Regiment