Birth: 1796 Slaugham, Sussex, UK
Father: John Croucher (Crowcher) b1779-a1797
Mother: Elizabeth Burtenshaw b1779-1797
Christening: 16 August 1796 Slaugham, Sussex, UK
Marriage: 10 May 1826 in Ardingly, Sussex, UK
Wife: Elizabeth Tester c1807-1861
Death: April-June 1848 Cuckfield, Sussex, UK
Mary Anne Croucher c1827
Martha Croucher c1834
Harriette Mahalah Croucher 1841
William Alfred Croucher (Chroucher) 1841-1930
Ann Croucher 1845-a1851
Christening of John Croucher in the IGI on 16 August 1796 in Slaugham, Sussex, parents John and Elizth Croucher.
Marriage of John Croucher and Elizabeth Tester in the IGI on 10 May 1826 in Ardingley, Sussex.
The same information is in the Sussex Family History Group Sussex Marriage Index adding he was a bachelor, she a spinster, both were of this parish and it was by banns.
The children were christened in West Hoathly, Sussex, spelt Chroucher for Martha, Harriette and William.
I cannot find an an entry in the 1841 census but he was not living with his wife and family who were at The Willows, West Hoathly.
Entry in FreeBMD for the death of John Croucher in April-June 1848 in Cuckfield (7 247).