www.freereg.org.uk (which indexes British vital records post 1839) shows John Charles Blevin, born Ormskirk Reg. District, June Quarter, 1859 (you will have to order the original certificate to learn more).
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On the 1861 Census of Lancashire, twp. of Formby, a Charles John Blevin, age 1, is listed as a grandson in the household of Thomas Blevin, 49, an unemployed shoemaker. Both are shown as born in Formby, and it looks as though Charles John could be an illegitimate son of one of Thomas' daughters. This is probably not your man, however, as John C. Blevin, age 40, b. Formby, was still in Lancashire in 1901.
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Quite possibly your family does go back to Formby, but I think you will need to sort out the confusion in the Pennsylvania records first. If you can find the marriage record, that is likely to give parents.
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The Lancashire Parish Register Society has published the Parish Register of Formby through 1837. These are still in copyright, but can be purchased on microfiche from the Society for a small fee (see http://www.genuki.org.uk/big/eng/LAN/lprs/fiche.shtml).