I can state without a doubt that the location you have for the 1975 Etna siting at a used car lot is way off location on Google Earth. The spot the marker comes up at is the now closed Blarney Stone Restaurant, which was very much a going concern in 1975. We moved to Etna in 1973, and had been visiting my Grandmother up the road in Shaler for 4.5 years prior to that, via bus that went by this site. I do not remember a used car lot on the main street of Etna anywhere near that end of town (former "West End" Grant Avenue section), nor anywhere on the main street the Bus ran on anywhere in Etna...

Do you have the actual street address that the siting occurred at?