Hi,
At least some of them have passed away, as follows:
Theo Nau + 23.02.2015
Werner Molge + 30.10.2006
Sighart Dinkel + 31.05.2015
Gerhard Ille + 03.03.2007
Bruno Rupp + 26.03.2014
Erwin Leykauf + 07.10.2007
Cheers,
Andrew A.
Air War Publications -
www.airwarpublications.com/earticles