Hi Gwen,
As you have the exact date you must have the IGI entry for his Christening;
John JUBB, 27 April 1828, Kellington to GEORGE and SUSAN
Susannahs Christening, 20 March 1825, Kellington to GEORGE and SUSANNAH
Do you actually have the marriage Cert to Hannah? It might be an idea to purchase it.
That would confirm his Fathers name and occp.
I cant find him conclusively after the 1851 census where they are living in Lincs!
Trish