Claim: 1242 Zambesia was discovered by C. Jackson, a South African astronomer who discovered a total of 72 asteroids, on April 28, 1932  and was named after the Zambezi basin in southern Africa.
Evidence: Discovered by Cyril V. Jackson (5 December 1903 – February 1988) was a South African astronomer, known for discovering 72 asteroids and a number of comets. It was discovered on 28 April 1932, by South African astronomer Cyril Jackson at the Union Observatory in Johannesburg. The asteroid was named for the large Zambezi basin in southern Africa.