Hello there. Sounds like this could be a couple who went to South Australia. WmHenry Abbott died in 1891 age 62 Mary Ann Treffry died in 1869 age 42? according to death details They had 7 children between 1855 & 1866. My mother is the grandaughter of their child Catherine Abbott born in 1859. Hope this helps. I have the other birth details but none for their births & marriage.