van't Hoff, Robert

Signalman Robert van't Hoff 1948

Johnny Esden and Bob van't HoffEd Crowe and Bob van't Hoff

van't Hoff on R/T circuitvan't Hoff releasing weather baloon

Sigs Station staff Norman Wells 1947Signals personnel at Yellowknife Station

van't Hoff in native winter gearvan't Hoff at Signal Station Norman Wells 1947

van't Hoff in Port Radium 1946Bob van't Hoff taking wind speed

van't Hoff spring 1947van't Hoff at Sigs Station Port Radium 1946

Bob van't Hoff Operating radio
Velox Versutus Vigilans