Hi there
I think I have found your Henry on the 1861 census, unfortunately, he
is in the workhouse and not with any parents.
He is 8 years old and named as Henry Armsworth. It does state he
was born in Wilnslow, Hampshire and at first I thought it
cannot be him. When I looked at the genuki for Brimpton, it
states that villages in Hampshire are only 2.6 miles away.
As he was only a child, and could well have lost his parents,
he may have been living in Wilnslow when he went into the workhouse
and presumed he was born there. I did then see him at 18 on the 1871
back in Brimpton so he did find his way home. Maybe, some of his family
came and got him out of the workhouse?
Alot of ifs, but I cannot find him on the 1861 unless his surname has
been changed drastically.
Presumably his Dad might have a connection with one of the childrens
names so I will try and see if I can have a look through the records to
see if there are people with the kids names getting married about
Henrys birth time.
If not I think you will have to do what KGarrad said and buy the birth
certificate as that will give the Mother and her maiden name, or usually does.
regards
Sandymc