Fromleft to right : Ernest van Marle and Carel van der Vijver (2 medicin boys), Han de Meijer and Hauk Fischer (2 geologists).
Also present but not on the photo : Jaap van der Goes van Naters (Club Praeses), Tom Kamphuisen, Frans Melzer, Joop Plantenga and Rudi de Wolf.     (More photos by Rudi)