Kenneth Slessor was born in Orange, New South Wales. He published his first poetry in the Bulletin magazine while still at school. He worked on the Sydney Sun newspaper from 1920 to 1925, and for a while on the Melbourne Punch and Melbourne Herald. He returned to Sydney in 1927 to work on Smith's Weekly, where he stayed until 1939.
In 1939, at the outbreak of the Second World War, Slessor was appointed as an official war correspondent, and spent time with Australian troops in England, Greece, the Middle-East and New Guinea.
At the end of the war he returned to the Sydney Sun as a leader-writer and literary editor until 1957. He then worked for the Daily Telegraph and Sunday Telegraph. During this period (from 1956 - 1961) he was also editor of the literary magazine Southerly.
Kenneth Slessor died in 1971.