Kerr was educated at the Shore School, Sydney, Sydney Church of England Grammar School and Sydney University. He served with the Pathfinder Force of the Royal Air Force during World War II. He became a director of the Town and Country Planning Association and an air charter executive. He was a national executive member of the Association of Supervisory Staff, Executives and Technicians from 1964.
He was Member of Parliament for Feltham from 1966 to 1974, and for Feltham and Heston from 1974 to 1983. He lost his seat in that year's landslide defeat for Labour, to the Conservative Patrick Ground.
On 15 November 1983 he was found dead in his car in Twickenham; he was believed to have suffered a stroke. He was aged 62.
- Hansard 1803–2005: contributions in Parliament by Russell Kerr
- Times Guide to the House of Commons, 1966 & 1983
- Leigh Rayment's Peerage Pages