Buckell and Buckle Family Tree Book - http://www.rsbproductions.co.uk/buckell/ - This site has many individual trees

George Earle Buckle - see Chambers Biographical Dictionery
Henry Thomas Buckle - see Chambers Biographical Dictionery

Transcripts of various Buckle wills 1659-1831 - copies available from abpublishing.

The Buckle Papers - A Catalogue - Issued by West Sussex County Council 1978 details all holdings at the West Sussex Record Office and includes a fold-out family tree - available from Cinderhill Books, Cinderhill, Mayfield, Sussex TN20 6PY, England.

Daniel Buckle
Census Return 1841 - available from Public Record Office, Kew, ref: HO107/659 Book 5 Folio 58 pages 19-20.
Census Return 1851 - available from Public Record Office, Kew, ref: HO107/1517 Folio 48 page 1.
Census Return 1871 - available from Public Record Office, Kew, ref: RG10/304 Folio 32 page 11.

James Fowkes Buckle
Christ's Hospital Presentation Papers - 28 March 1856 - available from Guildhall Library Aldermanbury, London EC2P 2EJ ref: Ms 12,818A/123
Christ's Hospital Childrens Register - admission and discharge entries - available from Guildhall Library Aldermanbury, London EC2P 2EJ ref: Mx 12,818/17 p.45.
Letter to 2^nd Duke of Cambridge re: admission to Christ's Hospital dated 11 March 1856 - copy available from abpublishing.
Letter to 2^nd Duke of Cambridge re: discharge from Christ's Hospital dated March 1861 - copy available from abpublishing.

William Buckle
Act of Parliament granting consent to John Buckle to act in the Estates of William Buckle a Lunatic given Royal Assent 16 July 1830 - available from West Sussex Record Office ref: Acc 290.
Buckle's Estate - handwritten copy of document drawn up by Boughton & White Solicitors done by CWB Jan 21 1890 - available from West Sussex Record Office ref: MSS 388.