Hello Janine,
I've had a look through the SMI and here are the results:
Abraham Wood's marriage is post-1837 so not available anyway.
John Crowhurst abt. 1642 came up a blank.
James Crowhurst 1749
I searched 5 years either way and found one entry:
Horsham, West Sussex
26 Oct 1753
James Crowhurst
Ann Langley
(no further info given)
James Crowhurst 1769
Again 5 years either way and two entries found
Battle, East Sussex
8 April 1768
James Crowhurst, Catsfield
Elizabeth Wood, otp, wcop (lic)
Arlington, East Sussex
James Crowhurst
Elizabeth Hards
botp, Banns
Hope this helps,
Phil