Green first began investigating Sasquatch sightings and track finds in 1957 after meeting René Dahinden and the two researchers collaborated in interviewing witnesses and sharing information of alleged sightings.
Green first began investigating Sasquatch sightings and track finds for the Canadian press in the late 1940s. In 1956 Green met René Dahinden and the two researchers collaborated in interviewing witnesses and sharing information of alleged sightings.