John Reader Hosking was a New Zealand natural products chemistry
The son of John Henry Hosking, a judge, Hosking was born in Dunedin in 1896.
He was part of the 5th (Wellington) Regiment in the Samoan Advance Party at the outbreak of World War I. He rejoined the effort via the Australian forces in Sydney as an Acting Bombardier. He gained a Doctor of Philosophy from Auckland University College, graduating in 1927. In 1930 Hosking returned to New Zealand from Europe and started working at the Department of Scientific and Industrial Research under Ernest Marsden.
Hosking died on 14 October 1946 at his home in Hedgerley, Buckinghamshire.