Hello Simon.
Why not get the Abel Wright / Caroline Riddle marriage cert of Sept 1849 in Amersham RD ref 6/434 to at least get his father's name. The 1851 & later censuses have him born Bellingdon, Chesham so why you think he was from Astwood, son of John Wright & Ann Wilding is a mystery to me. They had 12 children baptised at Astwood between 1818 & 1838 & none was named Abel.
In 1841 Abel Wright age 15 was ag lab at a farm in Bellindon hamlet of Chesham.
Regards John
As far as I can see, this Abel Wright(1822-1825), seems to be born Chesham in the census. Using BucksFHS church finder, the marriage occured @ St.Mary, Chesham.
In the 1851 census, the appears to be 2 children with them, Mary & John REDDLE(Daughter & son). Plus a son, Henry Wright c1850, Chesham.
The Cholesbury baptism is correct.
(Confirmed by BucksFHS- Cholesbury Transcripts CD.)Baptism - 11 Jan 1818. William. b.11 Dec 1817 son of William & Kitty WRIGHT of the parish of Chesham, Labourer.
Baptism - 25 Nov 1821. Abel born 19 Oct son of William & Kitty WRIGHT of Bellendon, Labourer.
BucksFHS Cholesbury Marriage.9 Nov 1815. by Banns.
William X WRIGHT, Bachelor. of this parish but a native of Chesham
Kitty X BRYANT, Spinster otp
Witnesses - Sarah Bryant & George Sills
Steve.