The Burlington County, NJ Pettits found on the 1850 census were printed in the July 1988 issue of TPC. Finally, here are some more transcriptions for that state. The following represents all households in Sussex, Monmouth and Salem Counties in which any Pettit appears.
SUSSEX COUNTY
TOWN PG/DW/FAM NAME AGE SEX COLOR OCCUPATION VALUE BIRTHPLACE
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Newton twp 112/108/110 John B. Smith 33 m farmer NJ
Jane " 34 f NJ
Margera " 7 f NJ
Sarah " 5 f NJ
Sarah Pettit 57 f NJ
117/177/180 John Pettit 53 m farmer 3500 NJ
Samuel " 15 m laborer NJ
Sarah A. Struble 4 f NJ
Elizabeth Bales 16 f NJ
Samuel L. " 24 m laborer NJ
Sarah A. " 22 f NJ
141/3/538 John R. Pettit 39 m farmer 15,500 NJ
Mary " 60 f NJ
Jane Hendershot 30 f NJ
Hannah M. " 12 f NJ
142/?/560 William Pettit 62 m farmer 6000 NJ
Nancy " 56 f NJ
Robert " 24 m clerk NJ
Mary A. Drake 11 f NJ
Wantage twp 194/160/161 William Richards 41 m harness maker NY
Ruth " 42 f NY
Samuel Pettit 17 m apprentice NJ
Frankford twp 257/?/121 Nathaniel Pettit 38 m teamster Sussex Co NJ
Ann " 32 f Sussex Co NJ
Phebe Ann " 13 f Sussex Co NJ
George B. " 12 m Sussex Co NJ
Robert M. " 10 m Sussex Co NJ
Amos L. " 8 m Sussex Co NJ
John R. " 4 m Sussex Co NJ
Albert " 5/12 m Sussex Co NJ
Mary Dennis 18 f Sussex Co NJ
Andrew Berry 4 m Sussex Co NJ
MONMOUTH COUNTY
Atlantic twp 92/91/95 John Petit 36 m carpenter NY
Bridget " 36 f Ireland
Mary E. " 6 f NY
Cath A. " 5 f NJ
Harriet " 3 f NJ
John " 1 m NJ
/98/112 Adam V. Marcellus 40 m farmer 6500 NY
Cath " 33 f NY
Emma " 9 f NY
Leonard " 11 m NY
Champman " 4 m NY
Albert M. " 11/12 m NJ
Thos Frost (?) 21 m laborer Ireland
Ellen Pettit 27 f Ireland
Howell twp 116/202/202 Richard Longstreet 83 m farmer 3500 NJ
Zilpha " 67 f NJ
Hetty " 25 f NJ
Mahlon " 22 m farmer NJ
Margaret Pettet 12 f NJ
Richard Longstreet 18 m farmer NJ
119/246/246 John Pettet 57 m laborer NJ
Hannah " 61 f NJ
Joseph Corkes (?) 47 m farmer 3000 NJ
139/565/565 John Pettet 50 m farmer 2000 NJ
Catherine " 45 f NJ
Horace " 21 m NJ
Mary " 18 f NJ
William " 16 m NJ
Catherine " 12 f NJ
Raritan twp 209/355/372 James G. Crawford 55 m farmer 18,500 NJ
Elizabeth " 54 f NJ
William S. " 25 m farmer 10,000 NJ
John J. " 21 m 350 NJ
210/355/372 Elizabeth " 13 f NJ
Sheppard Stillwell 14 m NJ
Winnie Pettitt 20 f Ireland
SALEM COUNTY
Mannington twp 62/266/253 David Petit 42 m farmer 16,000 NJ
Martha " 38 f NJ
Woodnutt " 16 m NJ
William " 11 m NJ
Franklin " 9 m NJ
Hannah " 7 f NJ
David " 1 m NJ
[can't read] McCormick 16 f Penn
Andrew " 14 m Penn
Hanna " 12 f Penn (erased)
Nicholas Reziu (?) 50 m black laborer MD
Isaiah Wright 18 m black laborer NJ
John Grangers 18 m black laborer DE
65/291/301 James Petit 31 m farmer 16,000 NJ
Elizabeth " 28 f NJ
Clarkson " 6 m NJ
Ruth " 5 f NJ
Deleoyn(?)" 2 m NJ
Theresa Ridgway 72 f NJ
Samuel Smith 19 m black laborer NJ
Caroline Wright 15 f black NJ
George " 16 m black NJ
Edward Sawyers 10 m black NJ
Salem 116/169/173 William Eldridge 30 m waleman (?) NJ
Mary A. " 19 f NJ
Preston " 2/12 m NJ
Harriet Petit 11 f NJ
126/304/311 Joseph Petit 40 m miller 15,000 NJ
Caroline " 37 f NJ
George W. " 11 m NJ
Charles C. " 10 m NJ
Elihu R. " 8 m NJ
Joseph " 1 m NJ
Elizabeth Dickenson 14 f NJ
Henrietta Sharp (?) 10 f NJ
/305/312 Woonutt Petit 69 m none NJ
Sarah P. " 67 f NJ
Samuel " 34 m NJ
Rachel Beesley 46 f 3000 NJ
Ann Sagan (?) 53 f NJ
Mary A. [can't read] 19 f mullato NJ