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A few ideas that come to mind are: contacting the adoption agency (if one was used), message in a local newspaper, Facebook or other social media, electors list (if it is possible to have access), school/college records. Of course no organisation is likely to give you an address but maybe they would pass on a letter from you. I am assuming that both parents are not alive or do not wish (or are unable) to help? Good luck.

Apologies if this appears twice, I sent my message but it seems to have disappeared.

I have a baptism entry where the clerk has recorded the father's occupation in French which was useful as I suspected the family was from France. This is not proof I know but interesting. Sometimes there are additional comments such as information stating from where an incomer originated. Another particularly useful one for me was the note that the burial of a young man, whose name was the same as his cousin, was the "son of the shoemaker".

To answer Paulo Leeds question about what happened to the birth certificates - I have no idea. I have often wondered if people did not routinely have copies of birth certificates for their children. Maybe they had to pay and the cost was too high? I have several replacement ones which were issued when the child became old enough to go to work or joined the army. I guess such things were not a priority in those times unless needed by "the authorities".

I would agree that it is Hernia. I think the style of writing (rather elongated) is what's causing the confusion. I have an ancestor who died in the 1870s of Strangulated Hernia but this is 1840s - maybe they were less precise with their medical terms at that time.

This link might be helpful
https://www.familysearch.org/wiki/en/Congleton_St_Peter,_Cheshire_Genealogy

Looks like you will need to contact Cheshire Records Office