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It's a long time since this post and I assume you have now found your ancestors.  Interestingly, Michael and Elizabeth (your Michael's parents) lived on Pilch Lane on the Huyton-with-Roby boundary and I assume that this was probably in Barker's Cottages.  These are a couple of old cottages, still there today, built and then extended in the 19th century, as Michael was also a bricklayer I think this was probably their home.  There was a farm called Barker's Farm on Pilch Lane not far from the junction of Childwall Lane which is in Huyton-with-Roby and other than two other cottages no other houses on this lane. Michael senior was buried in St. John the Evangelist Churchyard in Knotty Ash in 1856.  https://www.findagrave.com/memorial/207553168/michael-barker

Knowsley is still a village today, all who lived there would have worked on the Earl of Derby's estate http://archives.knowsley.gov.uk/knowsley-village/history-of-the-knowsley-estate/ The church mainly used by the people of Knowsley would have been at the ancient parish church of St Michael's in Huyton https://www.genuki.org.uk/big/eng/LAN/Huyton/StMichael or possibly St Mary's Parish Church in Prescot https://www.genuki.org.uk/big/eng/LAN/Prescot/StMary.
There are numerous Hitcheons/Hutchen in Huyton parish records in the C17. 

George's sister was my great, great grandmother, I have them in my tree.
You have to be very careful with the Waring family in the Wirral as there are literally thousands all with the same christian names, even a tiny place like Brimstage can have a couples with the same names and same children's names, researchers tend to land on anything that looks right and put all sorts of incorrect information on their trees.  Sometimes Waring is spelt WAREING or WEARING or even WEARRING on the parish records. I have been researching this family for 15 years and still find errors and big gaps in the records. You will find Cheshire Parish records and Bishops transcripts very useful in the earlier generations.

Interesting that you have a similar story and not unusual that it has it's own version of events although the basic facts are the same. There is no reason to discount that he was a young man who spoke Italian for if he was a child how would he know he came from Italy? As I was looking for a foreign vessel it was just as likely to have been a British one with foreign seamen onboard, not unusual but that we will never know. https://www.findagrave.com/memorial/158745615/lewis-formby