Yes I will be able to give some information on the family in the UK before they left for Pennsylvania, though think I should just add how I can across this information.
I live in the UK Cheshire and have been researching my Atherton Ancestors who lived in 1600's in a place called Bold, Lancashire and it was in researching my Ancestors I came across Henry Atherton (part of the same family, though not a direct ancestor of mine) and his wife Jennet Thelwall.
Both were born in Bold, though baptisted in Farnworth where the nearest parish church St Luke's is located.
Henry bap 27 Dec 1653 (son of John) and Jennet bap 4 Apr 1663 (daughter of Thomas).
They married 9 Jun 1685 in nearby Prescot.
While living in Bold before moving to Liverpool, they had the following children. BapBur
Grace29 Jul 1686 John27 Oct 16891 Nov 1689 Mary6 Aug 1691 Lydia18 Apr 1697 William3 Dec 1699
I believe they were a few more children bap in Liverpool.
I have not research the family further after they went to Pennsylvania from Liverpool though have come across a site that gives a great deal of info post Pennsylvania.