Here is John Buckley Crompton's baptism record:
https://www.ancestry.co.uk/imageview...rce&pId=226551
Baptised 9 Jan 1840 at Ashton Under Lyne, the son of Henry and Eliza Crompton of Moss Lodge, father's occupation gentleman.
Then strangely enough, there is an entry for him in the National Probate Calendar for 1862 saying he died 16 Jul 1840 at St Helier's, Jersey:
https://www.ancestry.co.uk/imageview...rce&pId=386268