So - you'll need Henry's marriage certificate to confirm his father's name because there are several Henry Pontings born in Gloucestershire around 1840.
I quite like this boy in 1841 - shame the 1841 census doesn't show relationships.
1841
HO107/378/10 5 5
St Philip and St Jacob, Gloucestershire
Thomas Ponting, 48, Labourer, no (=not born in county)
Sarah, 42, no
Mary Ann, 18, no
Sarah Ann, 13, yes
Christianna, 8, yes
Thomas, 4, yes
Henry, 12 mo, yes
(There's a birth registered in Jun 1840 Clifton)