John Thomas Wilson Martha Killingsworth

I am looking for John Thomas Wilson b.around 1849.
He married a Martha Frances Killingsworth b. 11 Mar 1854
Langley Marsh, Buckinghamshire, England.
The married on 3 Sep 1878 in South Australia, Australia.
Martha died 5 Apr 1883 in Adelaide. South Australia.
I do not know where John Thomas Wilson comes from, I
believe his father was James? (Scotland?) Please help.