Electoral results for the district of Petersham

1938 New South Wales state election: Petersham ^[4]

Party		Candidate	Votes	%	±%
	United Australia	Eric Solomon	9,033	50.5	+1.4
	Labor	Bill Sheahan	8,861	49.5	+4.4
Total formal votes			17,894	98.3	+0.2
Informal votes			307	1.7	−0.2
Turnout			18,201	97.1	+1.2
	United Australia hold		Swing	−1.3

1935 New South Wales state election: Petersham ^[5]

Party		Candidate	Votes	%	±%
	United Australia	Eric Solomon	8,701	49.1	−0.3
	Labor (NSW)	Bill Sheahan	7,995	45.1	+1.8
	Federal Labor	Patrick Colbourne	749	4.2	−2.9
	Independent	Jervis Blackman	286	1.6	+1.6
Total formal votes			17,731	98.1	−0.5
Informal votes			341	1.9	+0.5
Turnout			18,072	95.9	−0.2
Two-party-preferred result
	United Australia	Eric Solomon	9,178	51.8	−1.7
	Labor (NSW)	Patrick Colbourne	8,553	48.2	+1.7
	United Australia hold		Swing	−1.7

1932 New South Wales state election: Petersham ^[6]

Party		Candidate	Votes	%	±%
	United Australia	Eric Solomon	8,499	49.4	+11.7
	Labor (NSW)	Joe Lamaro	7,453	43.3	−18.1
	Federal Labor	Patrick Colbourne	1,221	7.1	+7.1
	Independent	Edgar Vale	30	0.2	+0.2
Total formal votes			17,203	98.6	+0.6
Informal votes			250	1.4	−0.6
Turnout			17,453	96.1	+2.6
Two-party-preferred result
	United Australia	Eric Solomon	9,213	53.5
	Labor (NSW)	Joe Lamaro	7,990	46.5
	United Australia gain from Labor (NSW)		Swing	N/A

1930 New South Wales state election: Petersham ^[7]

Party		Candidate	Votes	%	±%
	Labor	Joe Lamaro	10,365	61.4
	Nationalist	Henry Morton	6,367	37.7
	Communist	Annie Ford	138	0.8
Total formal votes			16,870	98.0
Informal votes			335	2.0
Turnout			17,205	93.5
	Labor win		(new seat)

Joe Lamaro (Labor) was the sitting member for the abolished district of Enmore which was largely replaced by Petersham.

1919 Petersham by-election
Saturday 22 March 1919 ^[8]

Party		Candidate	Votes	%	±%
	Nationalist	Sydney Shillington	2,633	51.0	−10.6
	Labor	Barney Olde	2,377	46.1	+14.8
	Independent	Donald Croal	150	2.9
Total formal votes			5,160	99.3	0.0
Informal votes			35	0.7	0.0
Turnout			5,195	45.6 [a]	−18.0
	Nationalist hold		Swing	N/A

The by-election was caused by resignation of John Cohen (Nationalist) who had accepted an appointment as a Judge of the District Court.^[8]

1917 New South Wales state election: Petersham ^[9]

Party		Candidate	Votes	%	±%
	Nationalist	John Cohen	4,441	61.7	−38.3
	Labor	James Bourke	2,253	31.3	+31.3
	Independent	John Lucas	507	7.0	+7.0
Total formal votes			7,201	99.3
Informal votes			49	0.7
Turnout			7,250	63.6
	Nationalist hold		Swing	−38.3

1913 New South Wales state election: Petersham ^[10]

Party		Candidate	Votes	%	±%
	Liberal Reform	John Cohen	unopposed
	Liberal Reform hold

1910 New South Wales state election: Petersham ^[11]

Party		Candidate	Votes	%	±%
	Liberal Reform	John Cohen	4,911	63.1
	Labour	Adamson Dawson	2,866	36.9
Total formal votes			7,777	99.0
Informal votes			82	1.0
Turnout			7,859	71.7
	Liberal Reform hold

1907 New South Wales state election: Petersham ^[12]

Party		Candidate	Votes	%	±%
	Liberal Reform	John Cohen	4,398	79.2
	Labour	John Kohen	1,082	19.5
	Independent	William Pickup	73	1.3
Total formal votes			5,553	98.4
Informal votes			90	1.6
Turnout			5,643	62.6
	Liberal Reform hold

1904 New South Wales state election: Petersham ^[13]

Party		Candidate	Votes	%	±%
	Liberal Reform	John Cohen	2,940	60.6
	Independent Liberal	Henry Davis	1,897	39.1
	Progressive	Adam Pringle	13	0.3
Total formal votes			4,850	99.2
Informal votes			41	0.8
Turnout			4,891	56.8
	Liberal Reform hold

Petersham lost part of the district to Annandale, Ashfield and Canterbury and was expanded to include part of Marrickville. The member for Petersham was John Cohen (Liberal Reform). The member for Marrickville was Richard McCoy (Liberal Reform) who successfully contested that seat.

1901 New South Wales state election: Petersham ^[14]

Party		Candidate	Votes	%	±%
	Liberal Reform	John Cohen	1,436	58.6	+21.7
	Independent Liberal	Joseph Cockbaine	950	38.8
	Independent	William Richardson	64	2.6
Total formal votes			2,450	99.3	−0.6
Informal votes			18	0.7	+0.6
Turnout			2,468	65.6	−2.8
	Member changed to Liberal Reform from Progressive

1898 New South Wales colonial election: Petersham ^[15]

Party		Candidate	Votes	%	±%
	National Federal	John Cohen	674	37.0
	Free Trade	Llewellyn Jones	626	34.3
	Ind. Free Trade	Percy Hordern	524	28.7
Total formal votes			1,824	99.8
Informal votes			3	0.2
Turnout			1,827	68.4
	National Federal gain from Free Trade

1895 New South Wales colonial election: Petersham ^[16]

Party		Candidate	Votes	%	±%
	Free Trade	Llewellyn Jones	643	49.5
	Labour	Percy Hordern	371	28.5
	Ind. Free Trade	Cornelius Danahey	279	21.5
	Ind. Protectionist	George Wallace	7	0.5
Total formal votes			1,300	99.2
Informal votes			11	0.8
Turnout			1,311	61.5
	Free Trade hold

1894 New South Wales colonial election: Petersham ^[17]

Party		Candidate	Votes	%	±%
	Ind. Free Trade	Llewellyn Jones	627	34.4
	Free Trade	Benjamin Short	386	21.2
	Labour	William Webster	342	18.8
	Ind. Free Trade	Cornelius Danahey	258	14.2
	Protectionist	William Robson	174	9.6
	Independent	John Gelding	16	0.9
	Ind. Free Trade	George Withers	11	0.6
	Ind. Free Trade	John Bell	7	0.4
Total formal votes			1,821	99.7
Informal votes			6	0.3
Turnout			1,827	83.9
	Ind. Free Trade win		(new seat)