PRECISELY. I worked for Air Canada until 1962 (Then Trans-Canada) in Cleveland and they were flying DC-8s and so were the other guys (either 8s or Boeing 707s)
Don’t know how or why Corsi would miss that one.
Heck, anyone who ever watched Bob Conrad and Connie Stevens in Hawaiian Eye in 59 and 60 would remember any Honolulu airport scene of someone flying in from the mainland showed a United DC8. I think United even sponsored the show.