Dr. Hellmuth Gensicke†, Wiesbaden
Dr. Erhard Grund, Ohren
Gerhard Hankammer†, Limburg
Allen Holth, Texas
Hans-Gottfried Knapp, Dauborn
Rudi Butzbach, Linter
Ed Rose, Ohio
Neil Wheeler, California
Trude Fuchs, Rheinhessen,
Karl-Ludwig Günther†, Recklinghausen,

and others who helped me in drawing my attention to information on the web or elsewhere.