Halstead Union is an area as far as i'm aware
http://seax.essexcc.gov.uk/result_details.asp?DocID=83686the Essex Society for Family History has members (with email addresses) with an interest in the name Pannell
http://www.esfh.org.uk/amsrun/Interests.phpIf Isaac & Lydia are the parents of Charles it is not recorded on the IGI's but as you can see Isaac has a John Pannell aged 20 (20-24) living with him in 1841 and he is not the son of Richard so there are other male children one would think....
Isaac & Lydia Pannell
children
Richard Pannell b.4th Oct 1811, c.30th Apr 1815 Independent, Ridgwell, Essex
Jemima Pannell b.3rd Dec 1814, c.30th Apr 1815.........."................"
1841
Ridgwell, Hedingham, Halstead Union, Essex
Isaac Pannell.....74....ag lab..........Essex
Lydia......."..........60.......................Essex
John........"..........20...ag lab..........Essex
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1841
Ridgwell, Hedingham, Halstead Union, Essex
Richard Pannell.....30....ag lab..........Essex
Elizabeth..."..........35........................Essex
Susannah Argent..15........................Essex
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1841
Ridgwell, Hedingham, Halstead Union, Essex
Henry Smith........20....ag lab..........Essex
Jemima......"........25.......................Essex
Joseph Pannell....4........................Essex
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Bryant