Hi,
I think that the marriage shows Sarah Jane's father to be John Harvey ASHFORD, and that Tynemouth might be a misspelling of Teignmouth, Devon.
Baptism
John Harvey
18 Jul 1811
Combe in Teignhead, Devon
Parents: Richard and Elizabeth ASHFORD
http://www.rootschat.com/links/01m5d/Marriage 17 Jul 1834
Saint Mary Arches,Exeter,Devon,England
John ASHFORD
Sarah HARRIS
Baptisms31 December 1835
Baptism Place: Combeinteignhead
Elizabeth Marrisminica?
Daughter of John and Sarah ASHFORD
Abode: Netherton
Carpenter
12 June 1837
Baptism Place: Combeinteignhead
Sarah Jane
Daughter of John and Sarah ASHFORD
Abode: Netherton
Carpenter
24 July 1838
Baptism Place: Combeinteignhead
Jane
Daughter of John and Sarah ASHFORD
Abode: Netherton
Carpenter
26 March 1840
Baptism Place: Combeinteignhead
Thomas
Son of John and Sarah ASHFORD
Abode: Netherton
Carpenter
Census1841 HO107/262/19 f.4 p.3 Combeinteignhead, Devon
Combe
ASHFORD
John 25 Carpenter
Sarah 25
Marrennria 5
Sarah Jane 4
Jane 3
Thomas 15months
Interesting website showing free info. about Jersey BMD, butit doesn't seem to be complete.
http://search.jerripediabmd.net/DefaultCensus1851 HO107/2529 f.224 p.6 St Brelade, Jersey
St Aubin
Market Hill
ASHFORD
John Head 40 Carpenter England
Sarah Wife 37 "
Marrinneca Daur 15 "
Sarah J Daur 14 "
Thomas Son 11 "
Ellen Daur 1 Jersey St Brelade
Danil BOWDITCH Lodger 21 Labourer England
Regards,
Daisy