He joined the Gordon RFC in Sydney in 1947 making first-grade appearances from that year but cementing his place in the top-grade as a front-rower in 1949.
His strong performance saw him elevated to the national side for the two Test series against those same visitors played in Sydney under captain John Solomon.
He made only one Test appearance there of the four played, with selectors opting for Nick Shehadie and Colin Forbes up front.
He was a born leader of men, was immensely popular, he met people well, was highly intelligent and spoke well in public.
On his return to Australia Davidson captained both New South Wales and the Wallabies matches in 1958 against the New Zealand Māori rugby union team before retiring at the end of that year.