I've looked through BucksFHS - Buckingham Transcripts CD, and found these marriages.
There are 15 possible variations of the Holton surname in the Buckingham PR's CD transcripts.
Keep, or discard at you leisure.
Marriage 6 Sep 1772 by Banns
William HOLTON otp
Esther X SMITH otp
Witnesses Joseph X Smith John Edgar,
Marriage 16 Oct 1798 by Licence
William HOLDOM otp
Elizabeth PARKINS of Helmdon in Northamptonshire
Witnesses Richd Adcock Cathrine X Bates.
Marriage 15 Oct 1810 by Banns
William X HOLTON of Tingewick
Susanna X NORMAN otp
Witnesses George Jarman John Bates.
Marriage 23 Dec 1816 by Banns
William HOLTON, Bachelor otp
Mary Ann WILLIAMS, Spinster otp
Witnesses Mark Williams Thos Jenkins.
Marriage 12 Oct 1820 by Banns
William HOLTON, Bachelor otp
Charlotte GRACE, Spinster otp
Witnesses James X Mills Mary Hughes
Marriage 21 May 1824 by Licence
William HOLDOM, Widower otp
Elizabeth EAVERY, Spinster otp
Witnesses John Taylor Ann Holdom.
Banns 17 Jan 1830
William HOLTON otp
Ann BATES of the parish of Akeley
Marriage 6 Jun 1820 by Banns
John X HARRIS, Bachelor otp
Ann X HOLTON, Spinster otp
Witnesses Thomas X Warner Rebecca X Harris
Marriage 5 Jan 1829 by Banns
Thomas DELL, Bachelor otp
Ann HOLTOM, Spinster otp
Witnesses John Haile Sarah Ann X Mason .
Marriage 24 Oct 1831 by Banns
Joseph X HOLTON, Widower of Marsh Gibbon, Bucks
Charlotte EASTER, Spinster otp
Witnesses George Pennell Elizabeth X Easter
Marriage 16 Nov 1829 by Banns
Richard RAWLINS, Widower of Marsh Gibbon
Elizabeth X HOLTON, Spinster otp
Witnesses William X Holton Sophia X Holton.
Banns 24 Mar 1833
Richard HUNT otp
Elizabeth HOLTON of the parish of Padbury, Bucks.
Steve.