Yes, it's the same ancestors. John Wilson married Ann Simpkin the marriage was at Wigan parish church - 1841/42 if I remember rightly. My tree is on Ancestry - 'The Wilson Family Tree". Joh's dad was also called John but I was not able to go any further back in time due to them being Catholics, some records from St Mary's church in Billinge but that was only built late 1700's. So I am stuck.
Interesting but on the census Billinge Slack Farm address was Chapel End which is lower down Billinge side?
Thank you. I think I've found Slack Farm on this map here (where the pharmcy is now)...