Hi billyboob and welcome to rootschat from me also. Going by all that has been posted so far and if correct which does seem very likely I have gone backwards with timelines as well.
John Wright born c1837-9 Ireland. He marries possibly/probably in Ireland to Mary Jane Mitchell born c 1848. Cannot find a UK marriage.
They appear in 1871 with 2 children.
1. Eliza Jane born jq 1867 Prescot mother's maiden name "Mitchell"
2. Mary born dq 1868 Prescot mother's maiden name "Mitchell"
Mary Jane Wright dies aged 23 in jq 1871 Prescot.
John Wright re-marries Margaret Hunter details below
1st January 1872 Parish Church, St Helen's Prescot.
John of full age, occupation Furnaceman, a widower abode St Helen's. His father shown as William Wright occupation Farmer.
Margaret Hunter aged 19, spinster, abode St Helen's, father shown as Robert Hunter occ plasterer.
John signed the register, Margaret signed with an X
Witnesses were Joseph Wright and Mary ****
Children below all born with mother's maiden name Hunter
1 William Alexander sq 1873
2 Joseph John dq 1875--Peter's father
3 Margaret jq 1878
4 Amelia sq 1880 (Emily on 1881 census)
5 Martha dq 1882
6 Emily Ann jq 1885
Cannot find a Robert Wright born c1878 who appears with family in 1891 census.
I too have failed to find a Lilly/Lily
John