He studied at the University of Sydney from 1902, and after graduation worked as an assistant stock inspector in Armidale; he also took up a farm, "Pine Vale", at Woolomin.

He was a co-founder and the first vice-president of the Limbless and Maimed Soldiers' Association, a member of the Tamworth Pastures Protection Board, and was an unsuccessful Progressive Party candidate at the 1922 state election.

[1][6][3][7][4] To general surprise, Green won the House of Representatives seat of Richmond for the Country Party at the December 1922 election, defeating the sitting member and government minister Walter Massy-Greene.

[9] He remained the member for Richmond until his defeat at the 1937 election by Larry Anthony (senior), another Country Party candidate.

[12] He was subsequently admitted to the bar in March 1942,[13] and worked as a barrister until ill health caused him to cease practice in June 1946.