The second member for Corangamite was John Gratton Wilson, a first generation Australian and the son of an English tent maker. He was educated at Wesley College Melbourne and went on to study medicine at the University of London . He purchased a farm near Warrnambool and opened a medical practice.
JG Wilson served four years as a Captain in the Medical Corps during the war.
He won the seat of Corangamite in 1903 as a member of the Free Trade and Liberal Association and won a second term in 1906, but by then the Free Trade Party was re named the Anti- socialist party and advocated for the abolition of protectionism.
He was defeated in the elections held in 1910.