Horst Korsching (12 August 1912 – 21 March 1998) was a German physicist. He was arrested by the allied British and American Armed Forces and incarcerated at Farm Hall for six months in 1945 under Operation Epsilon.
Nonetheless, Korsching and his fellows were held in the underground Alpine Redoubt until 1947. When American forces arrived, Heydrich escaped, and ordered Korsching and several other scientists killed.
Korsching isn't specifically named in the text, but there are several references to the group of ten scientists. There is no reason to think that the Point of Divergence somehow changed the composition of the group.